Which of the following is a NOT mechanism by which the biofuels are made? a. by reacting animal fat or vegetable oil with waterb. by fermenting sugar components of starchy cropsc. by reacting animal fat or vegetable oil with alcohold. by treating animal fat or vegetable oil with hydrogen

Answer:

1. An action potential is propagated down the lower motor neuron.

4. Vesicles containing glutamate fuse with the nerve terminal.

3. Acetylcholine binds its receptor and causes depolarization.

2. Calcium levels increase in the cytoplasm of the muscle cell.

5. Contraction

Explanation:

In the activation for the somatic motor neuron pathway;

first, an action potential is propagated down the lower motor neuron; this results to vesicles containing glutamate to fuse with the nerve terminal and then results to opening of the acetylcholine receptor channel. The opening leads to increase in Na+ and K+ ions permeabiity which causes depolarization. This depolarization then results to the generation of an action potential in the muscle membrane. As the membrane depolarization approaches a specialized region, it increase the calcium level in the cytoplasm of the muscle cell, as calcium moves from the intracellular store into the cytoplasm. This rise in cytoplasmic calcium then induces muscle contraction.

The correct sequence of activation for the somatic motor neuron pathway -

When an action potential reaches the axon terminal, calcium enters the axon terminal. The synaptic vesicles fuse with the nerve terminal. This causes exocytosis of acetylcholine into the synaptic cleft. Acetylcholine binds to its receptors.

The binding of Ach to receptors results in depolarizing muscle cell membrane. The action potential is carried down by T tubules to stimulate the sarcoplasmic reticulum. It releases calcium in the cytoplasm of the muscle cell. This facilitates cross-bridge formation and contraction of skeletal muscle occurs.

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Answer:

6.0.

Explanation:

This is an incomplete question.

Answer:

It's difficult to see the effects of a risky decision in the stressed teen mind.

Explanation:

The teen brain is physiologically different from the brain of a child or an adult. The teen brain is interested to take risks and trying new things. Moreover, adolescent cerebellum is also easily manipulated by social pressure and can convert a poor decision into a bad habit.

Whereas the brain is in the same vulnerable state, it is crucial for teenagers not to make dangerous decisions to get around with the constructive stress from peers and manage stress. Teenagers could benefit from tools such as a coping skills method and a Never Do list.

Answer:

two, phospholipids, non polar, tails, polar, heads.

Explanation:

This is just basically illustrating one of the components of the lipid bilayer memebrane. The membrane is made up of two lipid layers with the polar head groups facing either the cytosol or the outer surroundings while the non polar tails facing each other. Such that this bilayer act as a barrier between the cytosol of the cell/organelle eg endoplasmic reticulum and the outer surroundings.

The lipid bilayer consists of two rows of phospholipids, with the non-polar hydrophobic tails forming the center of the bilayer. The polar hydrophilic heads are situated along the outside of the bilayer. This bilayer creates a separation between the contents of a cell and its surroundings.

The lipid bilayer consists of two rows of phospholipids, with the non-polar hydrophobic tails forming the center of the bilayer. The polar hydrophilic heads are situated along the outside of the bilayer. This arrangement creates a barrier between the cell's interior and the external environment. The hydrophobic tails shield the inner part of the bilayer from the surrounding aqueous environment, while the hydrophilic heads interact with water molecules on both sides of the membrane. This selective permeability allows the cell to control the movement of molecules in and out of the cell, maintaining homeostasis and enabling essential cellular processes to occur. The lipid bilayer also plays a crucial role in cell signaling, adhesion, and recognition, contributing to the overall function and integrity of the cell.

For a 69 million year old dinosaur fossil, essentially no measurable amount of the living dinosaur's 14C would be remaining today.

The half-life of carbon-14 (14C) is 5730 years, which means that after this time, only half of the original 14C concentration will remain. For a 69 million year old dinosaur fossil, we can calculate how much 14C would be remaining today using the half-life. Since the half-life is much shorter than the age of the fossil, the amount of 14C remaining would be extremely small, approaching zero. Therefore, we can estimate that essentially no measurable amount of the living dinosaur's 14C would be remaining today.

Answer: better

Natural Selection is any natural process that changes the genetic composition of a population by ensuring that some individuals leave better offspring than others.

Explanation:

Natural selection simply involves the elimination of less favourable traits such as slender body parts, lower resistance to diseases etc while highly favorable traits such as plump body parts, higher resistance to diseases that makes organisms better suited to the environment are retained, and then passed from parents to offsprings.

Thus, natural selection brings about the emergence of better offspring than others.

Answer:

Eye is one of the most important organ of the body that enable the individual to see the different things. The sensory neuron receives the stimuli and interpret the information to the brain.

The optic nerve detects the signal that has been refracted by the retina. The signal is then transferred to the optic chiasm. The signal is received by the thalamus specifically at the Lateral Geniculate Nucleus. This results in the creation of retinotopic map. The signal is then received by the occipital lobe at the visual cortex. This is determined as optical projections. The signal was then detected by the temporal lobe and by the parietal lobe. This helps in the identification of the object.

The eye and the brain connect through complex neural pathways. Visual information travels via the optic nerve to the optic chiasm, where nerve fibers cross. The signals are then processed in the LGN and sent to the occipital lobe, where the final image is perceived.

The eye and the brain are interconnected through complex neural pathways. Initially, light enters the eye, and the retina's photoreceptor cells convert this light into electrical signals. These signals are then passed onto the bipolar cells and ganglion cells in the retina. The axons of the ganglion cells make up the optic nerve, which carries the visual information to the brain.

At the optic chiasm, the optic nerves from both eyes cross, resulting in visual information from the left half of both retinas (which corresponds to the right visual field) being sent to the right side of the brain, and vice versa. This is called decussation.

The signals then pass through the lateral geniculate nucleus (LGN), a relay center in the thalamus for the visual pathway. The LGN processes the visual signals and sends them to the primary visual cortex in the occipital lobe of the brain.

In the occipital lobe, the signals are detailed, and we perceive the final image. This entire neural pathway ensures the accurate perception and interpretation of visual information.

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Answer: Primary succession

Explanation:

Primary succession occurs when living organisms colonize (appear on) a newly found area. So, since the retreating glacier (a large body of ice flowing downwards) resulted in a new environment, it tells that no living organisms previously existed in the area.

Therefore, the presence of nutrients in the lake would then support new life activities brought by the various species of living organisms.

Thus, primary succession occurs

Answer:

The correct answer is the third statement.

Explanation:

The epidermal growth factor refers to a ligand that stimulates the epidermal growth factor receptor or EGFR. The EGFR refers to a receptor tyrosine kinase. With the binding of a ligand to a receptor, the phenomenon of dimerization takes place, which makes the receptor to cross-phosphorylate each other within the intracellular domain, this eventually results in the phosphorylation of the downstream signaling molecules.  

This transduction of signals eventually results in cell differentiation. However, when the intracellular domain is not present, the signal transduction cannot occur within the cell. Thus, if the mutated EGFR, that is, without intracellular domain gets overexpressed, the ligand combines with the mutated receptor, its dimerization takes place with the help of the extracellular domain, but it will not be able to perform signal transduction, due to the absence of intracellular domain. Therefore, dimerization of EGFR will take place, without performing cross phosphorylation, which will eventually prevent cell growth.  

Final answer:

Temperature significantly influences the evolution and distribution of species by necessitating adaptations such as migration, hibernation, and estivation to cope with fluctuations. It affects metabolic rates and speciation, with extreme temperatures shaping the adaptation and survival strategies of organisms. This fundamental abiotic factor plays a crucial role in the evolution and ecological placement of species.

Explanation:

Role of Temperature in the Evolution of a Species

Temperature plays a significant role in the evolution and distribution of species. Organisms must either maintain a specific internal temperature or inhabit environments that keep their body within a range supporting their metabolism. Major evolutionary adaptations, such as migration, hibernation, and estivation, have developed to cope with temperature fluctuations. Abiotic factors like temperature influence other abiotic factors, including soil quality, which affects plant migration and the subsequent attraction of certain animal types. This interplay between abiotic and biotic factors shapes ecosystems and the species that thrive within them.

Adaptations to temperature are crucial for survival and reproduction, affecting metabolic rates and, consequently, generation time and speciation rates. These adaptations are a response to extreme temperatures that most organisms cannot survive due to enzymatic constraints. For instance, Archaea bacteria have evolved to thrive in extremely hot environments, exemplifying organisms’ incredible capacity to adapt to their surroundings.

Therefore, temperature is a fundamental abiotic factor that drives the evolution of species by necessitating and fostering the development of adaptations that allow organisms to survive, reproduce, and thrive under specific environmental conditions.

Answer:

a) PP

b) F_

c) Pp

d) F_

e) pp

f) F_

g)PP

h)f+f+

i)Pp

j)f+f+

k)pp

l)f+f+

Explanation:

Answer:

15.5        

Explanation:

Answer:

The correct answer is dominant.

Explanation:

On the basis of the given question, both the parents are suffering from piebald spotting, that is, a condition in which patches of the skin is devoid of pigmentation. It is given that one of the progenies of the parents is exhibiting normal skin, while other is exhibiting piebald spotting.  

The condition results due to the non-tendency of the cells that generate pigment to migrate appropriately at the time of development indicate that if the trait would have been recessive, then both the child should have been suffering from the condition. As this is not the case, it shows that the trait is dominant, and it also shows that the two parents are heterozygous for the trait not homozygous.  

Answer: Nucleic acids

Explanation:

Nucleic acids are biologically occuring polynucleotides in which the nuclotides residues are linked in a specific sequence by phosphodiester bonds.

The two types of nucleic acids are DNA which is double stranded and serves as the usual carrier of genetic information while RNA which is single stranded serves a carriers of genetic information in some viruses only.

Nucleic acids, specifically DNA and RNA, are the key molecules within a cell responsible for carrying genetic information. They are formed of nucleotides and play a vital role in cell functioning, heredity, and protein synthesis.

Within the cell, the molecules responsible for carrying genetic information are nucleic acids. These macromolecules, important for the continuity of life, carry the genetic blueprint of a cell and provide instructions for the cell's functioning. Macromolecules within the cell include proteins, lipids, carbohydrates, and nucleic acids, but nucleic acids i.e., DNA and RNA are unique in carrying genetic information.

Nucleic acids are made up of nucleotides, each composed of a pentose sugar, a nitrogenous base, and a phosphate group. DNA, or deoxyribonucleic acid, carries the genome and is passed down from parents to offspring. It has a double-helical structure, with the two strands running in opposite directions and connected by hydrogen bonds. RNA, or ribonucleic acid, is involved in protein synthesis and its regulation.

The base sequence of DNA is responsible for carrying and retaining the hereditary information in a cell. It directs its own synthesis, as well as the synthesis of RNA and proteins, giving rise to diverse structures and functions.

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Drag each one of the labels onto the figure to identify function of each structure(structure image attached)

Answer:

Left side(top to bottom)

Right side

Explanation:

Virus is an infectious agent that has the ability to reproduce inside its host cell.Once inside a host cell,it has the ability to replicate itself. It is composed of a core of genetic material, either DNA or RNA. It is surrounded by a protein coat or protein envelope(that covers genome), which is a protective layer that enables the virus to survive between hosts. Virus is the smallest of all microbes. A typical virus may vary in size. The smallest being only 17nm and the largest is 1500nm in size.

Answer:

B. increase, decrease.

21. Quiet inspiration will increase thoracic and lung volume and decrease intrapulmonary pressure.

Explanation:

Inspiration is the process by which air enters from the outside to the inside of the lungs. The communication of the lungs with the outside is done through the upper airways. Inspiration is the active phase of breathing, for it to occur it is necessary that different muscles contract in order to increase the size of the chest, which causes the lung to expand and atmospheric air tends to enter to equalize the pressure . During inspiration the vertical diameter of the thorax increases due to the decrease in the diaphragm, but the transverse and anteroposterior diameter also increases due to the action of the remaining muscles that raise the ribs.

Answer:

Option-(A):The signal sequence is recognized and bound by a receptor protein in the organelle's outer membrane.

Explanation:

W1 did not fluoresce because it did not contain the gene for rGFP. W2-W4 fluoresced slightly, possibly due to low expression levels or environmental factors.

The fluorescence of a substance is dependent on the presence of specific molecules or proteins that can emit light when excited by UV light. In this case, W1 did not fluoresce because it did not contain the gene for rGFP, which is responsible for fluorescence. The presence of GFP in W2-W4 allowed them to fluoresce slightly, potentially due to two reasons:

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W1 did not fluoresce because it lacked rGFP. W2-W4 contained GFP, but fluorescence may have been faint due to low GFP concentration or suboptimal environmental conditions.

W1 should not have fluoresced because it did not contain rGFP, the protein responsible for fluorescence. Fluorescence occurs when certain molecules absorb light at one wavelength and emit light at a longer wavelength. Without the presence of rGFP, there would be no protein capable of fluorescing in W1.

W2-W4 should have fluoresced slightly because they contained GFP, which is known for its fluorescence properties. However, the fluorescence may have been faint for two possible reasons:

1. Concentration: The concentration of GFP in W2-W4 may have been lower than optimal for strong fluorescence. Higher concentrations of GFP typically result in brighter fluorescence, so if the concentration was too low, the fluorescence may have been less intense.

2. Environmental factors: Environmental conditions such as pH, temperature, and presence of certain ions can affect the fluorescence of GFP. If the environmental conditions in W2-W4 were not optimal for GFP fluorescence, it could have resulted in weaker fluorescence compared to ideal conditions.

Answer:

1.) Compounds that contain a fused ring systerm are called _steroids_. These have three 6-membered rings and one 5-membered ring. some of these compounds are found in biological membranes.

2.) _Fatty acids__ are the building blocks for many lipids, and they generally contain an even number of carbon atoms and an unbranched hydrocarbon chain

3.) _Glycolipid__ are formed when a carbohydrate is glycosidically linked to a hydroxyl group of a lipid. examples include gangliosides and cerebrosides. these are also found in biological membranes.

4.) _Triacylglycerols_are the storage form of lipids, accumulating in adipose tissue, and they can be used as metabloic fuel. these compounds have a polar part, made of three ester groups, and a nonpolar fatty acid tail.

5.) _Sphingolipids__ are made up of a long-chain amino alcohol joined, either by a glycosidic linkage or a phosphodiester linkage, to a fatty acid. these do not contain _glycerol__. they are abundant in the nervous system.

6.) When glycerol esterified to two fatty acids and a phophoric acid molecule a _glycerophospholipid_ is formed. These are found in biological membranes.

Final answer:

The types of lipids are identified and placed correctly in the blanks: steroids, fatty acids, glycolipids, triacylglycerols, sphingolipids, and glycerophospholipids, each with their respective characteristics and functions in biological systems.

Explanation:

The statements describe different types of lipids and require the correct lipid types or components to be placed in the blanks:

Compounds that contain a fused ring system are called steroids. These have three 6-membered rings and one 5-membered ring. Some of these compounds are found in biological membranes.

Fatty acids are the building blocks for many lipids, and they generally contain an even number of carbon atoms and an unbranched hydrocarbon chain.

Glycolipids are formed when a carbohydrate is glycosidically linked to a hydroxyl group of a lipid. Examples include gangliosides and cerebrosides. These are also found in biological membranes.

Triacylglycerolsare the storage form of lipids, accumulating in adipose tissue, and they can be used as metabolic fuel. These compounds have a polar part, made of three ester groups, and a nonpolar fatty acid tail.

Sphingolipids are made up of a long-chain amino alcohol joined, either by a glycosidic linkage or a phosphodiester linkage, to a fatty acid. These do not contain glycerol. They are abundant in the nervous system.

When glycerol is esterified to two fatty acids and a phosphoric acid molecule, a glycerophospholipid is formed. These are found in biological membranes.

Answer: Yes

Explanation:

In hot regions, with intense sunlight where stomata closes during the day, C3 plants photorespiration drains away as much as the 50% of the carbon fixed by the Calvin cycle for photosynthesis. C4 plants have evlove to minimize photorespiration and increase photosynthesis.

As CO2 levels are increased C3 photo-respiration decreases. More CO2 increases the photosynthetic rate of C3 plants. The increasing photosynthetic yield of C3 plants at higher levels of atmospheric CO2 makes C3 plants as better as C4 plants. In addition less ATP is used in C3 plants when compared to the energy cost of C4 photosynthesis

Final answer:

Increasing atmospheric CO2 levels could potentially reduce the competitive advantage of C4 plants over C3 plants in hot, dry environments due to diminished necessity for C4 CO2 concentrating mechanisms.

Explanation:

Increasing CO2 levels in the atmosphere could potentially reduce the competitive advantage of C4 plants over C3 plants in hot, dry environments with high sunlight levels. The unique adaptations of C4 plants, including their CO2 concentrating mechanisms, allow them to efficiently perform photosynthesis in these conditions by reducing water loss and avoiding photorespiration.

However, as atmospheric CO2 levels rise, the air becomes richer in CO2, potentially diminishing the need for C4 plants to utilize their specialized CO2 concentrating mechanisms. This could lead to C3 plants, which thrive better in environments with higher CO2 levels due to their direct use of RuBisCO for carbon fixation in the Calvin cycle, becoming more competitive in environments that were previously dominated by C4 plants.

Nonetheless, it is important to consider that C4 plants have other advantages such as higher water use efficiency and tolerance to high temperatures and light intensities, which may still confer them some advantage in these environments, despite increased CO2 levels.

Answer: Frequency of dominant allele is 0.9 and people who are heterozygous for the condition are 648.

Explanation:

According to Hardy-Weinberg equation, p represents frequency of dominant allele, q represent frequency of recessive allele.

And also p + q = 1.

Given frequency of recessive allele, q as 0.1.

p, frequency of dominant allele is

1 - 0.1 = 0.9

Therefore, frequency of dominant allele= 0.9.

Number of people that will be heterozygous will gotten from the percentage of heterozygous of the total population.

Heterozygous is represented as 2pq, that is the product of 2,p and q.

Therefore we have 2 multiply by p by q.

2 x 0.9 x 0.1= 0.18 or 18%.

Since we are to find the number and not only percentage:

So from the population given as 3600, number of heterozygous is 18% of 3600.

18% of 3600 = 648.

Answer:

The frequency of the dominant allele is 0.9 and there will be 648 heterozygous people for the condition.

Explanation:

According to Hardy Weinberg`s equilibrium p2 + 2pq + q2 = 1  

p = frequency of the dominant allele in the population

q = frequency of the recessive allele in the population

p2 = percentage of homozygous dominant individuals

q2 = percentage of homozygous recessive individuals

2pq = percentage of heterozygous individuals = frequency of the dominant allele

Therefore (1 - 0.1) = 0.9. (frequency of dominant allele)

(0.18x3600) = 648 (number of peopleheterozygous for Tay Sachs, 18% of the population).

Answer: Adenine, Guanine and Cytosine takes 25% each

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if thymine makes up 25% of the DNA nucleotides, Adenine is also 25%.

Then, 25% + 25% + C + G = 100%

50% + C + G = 100%

C + G = 100% - 50% = 50%

Thus, divide 50% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 25%

Final answer:

Using Chargaff's rules, if thymine makes up 25% of the DNA nucleotides in a plant species' genome, adenine also represents 25%, with guanine and cytosine each constituting 25% as well, ensuring all nucleotide percentages total 100%.

Explanation:

If thymine makes up 25% of the DNA nucleotides in the genome of a plant species, the percentages of the other nucleotides in the genome can be deduced using Chargaff's rules. According to these rules, in a DNA molecule, the amount of adenine (A) equals the amount of thymine (T), and the amount of guanine (G) equals the amount of cytosine (C). This principle of base pairing dictates that if 25% of the nucleotides are thymine, then adenine also makes up 25% of the nucleotides due to the A=T rule.

Since thymine and adenine together account for 50% of the nucleotides, the remaining 50% must be divided equally between guanine and cytosine, following the G=C rule. Thus, both guanine and cytosine make up 25% of the nucleotides each.

In summary, if thymine constitutes 25% of the nucleotides in the DNA of a plant species, then adenine, guanine, and cytosine also represent 25% each respectively, ensuring the total percentages add up to 100%.

Answer:

1. DNA replication produces two identical DNA molecules, called SISTER CHROMATID(S), which separate during mitosis.

2. After chromosomes condense, the CENTROMERE is the region where the identical DNA molecules are most tightly attached to each other.

3. During mitosis, microtubules attach to chromosomes at the KINETOCHORE(S)

4. In dividing cells, most of the cell's growth occurs during INTERPHASE.

5. The MITOTIC SPINDLE is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division.

6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called CHROMATIN.

7. In most eukaryotes, division of the nucleus is followed by CYTOKINESIS, when the rest of the cell divides.

8. The CENTROSOME(S) are the organizing centers for microtubules involved in separating chromosomes during mitosis.

Explanation:

The question involves understanding various biological terminologies related to the cell cycle and mitosis. These terms include sister chromatids, centromere, kinetochore, interphase, mitotic spindle, chromatin, cytokinesis, and centrosomes.

The following is the correct completion of the sentences using the provided terms:

1. DNA replication produces two identical DNA molecules, called sister chromatids, which separate during mitosis.

2. After chromosomes condense, the centromere is the region where the identical DNA molecules are most tightly attached to each other.

3. During mitosis, microtubules attach to chromosomes at the kinetochore.

4. In dividing cells, most of the cell's growth occurs during interphase.

5. The mitotic spindle is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division.

6. During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called chromatin.

7. In most eukaryotes, division of the nucleus is followed by cytokinesis, when the rest of the cell divides.

8. The centrosomes are the organizing centers for microtubules involved in separating chromosomes during mitosis.

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Answer: Option B.

Explanation:

A glycolipid is a lipid molecule that contain carbohydrate unit and it is bonded together by glycosidic bond. Glycolipid is a component of cell membrane and it consist of a hydrophobic tail and one or more hydrophilic sugar group. They help to maintain cell membrane stability.

A glycolipid is a lipid molecule that contains at least one carbohydrate unit and is a fundamental component of cell membranes. It plays significant roles in providing energy, enabling cellular recognition, and participating in cell communication.

The correct definition of a glycolipid is: a lipid molecule that contains at least one carbohydrate unit. Glycolipids are molecules within cell membranes that consist of a lipid and a carbohydrate. They play several important roles in the cell, which include providing energy, serving as markers for cellular recognition, and participating in cell-cell communication. Essentially, glycolipids are crucial for maintaining the structure and function of living cells.

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Answer:

Short Tandem Repeats (STR) intensification is utilized for the discovery of wrongdoing, Paternity testing or if there should arise an occurrence of chimer-ism and other. The pair rehashes change from individual to person. STR design in a youngster is the blend of their folks STR.  

1: Homozygous allele for that specific quality: Peak on the gel is speaking to the kind of allele of a particular STR. Each quality comprises of two alleles, if the arrangements of both the alleles are a similar they are known as the homozygous allele for that quality and their demeanor on gel goes ahead a similar spot. On the off chance that there is yielding in STR of the alleles, at that point two separate groups for that qualities accompany some distinction in position.  

2. The flat hub of gel speak to the DNA section size: With the expansion of STR piece size, the groups move towards the privilege of the gel in any case, with decline towards left.  

3. Heterozygous alleles with two distinctive STR part size  

4. Since youngster STR is the allelic blend STR example of their folks: that is STR of one allele originate from mother anyway second originates from mother for a similar quality. The STR example of kin be the equivalent (all the kin are a blend of their folks)

Answer: parasitic

Explanation:

Athletic form is a common infections disease.it is a fungus infection that affects the skin. It's affect invariably the toes, nails and even hand. It causes inching sensation, cracking of the feet and even the feet becomes red. It cause by microorganisms and found mostly I warm wet environment.it is contagious as ir can be pass on to another person.

Athlete's foot is caused by a parasitic mold that lives on and damages the skin and nails, causing discomfort and other symptoms. A parasitic organism causes harm to its host, unlike beneficial organisms.

The mold causing athlete's foot is best described as parasitic. This term is used to denote organisms that live on or within another organism (the host), causing damage to it. In the case of athlete's foot, the mold lives on the skin or nails, damaging these tissues and causing symptoms such as itching, peeling, and burning. Unlike beneficial organisms, which contribute positively to their host's health or survival, parasitic organisms cause harm. They are not fatal, meaning they do not cause death, nor are they nocturnal, a term that refers to creatures that are primarily active during the night.

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Answer: Option D.

Ureter, bladder, urethra.

Explanation:

Blood move to the kidneys through the renal arteries. The filtered blood leave the kidney through the renal vein and goes back to the heart. After the filtered blood flow back to the heart, urines leave the kidney and move to the ureter, from the ureter it moves to the bladder, the bladder expands as urine fills it, when it is full, it move to the urethra.

The correct route of urine out of the body after leaving the kidney is through the ureter, into the bladder, and then exiting via the urethra, making the correct answer D. ureter, bladder, urethra.

The route of urine out of the body after it leaves the kidney is through the ureters, to the urinary bladder, and finally through the urethra.

Specifically, once urine is formed in the kidneys, it moves down to the ureters, which are muscular tubes that employ peristalsis to transport the urine to the bladder. The bladder acts as a reservoir, storing the urine until you are ready to urinate. When you urinate, the bladder contracts, and urine exits the body through the urethra, which is the final part of the urinary system.

Therefore, the correct answer to the question is: D. ureter, bladder, urethra.

Answer:

if we are talkin about temperature then it could change how a species live so if it's hot it could have scales but if it's cooled it could have fur whatever the animal or species is.

Answer:

Long term temperature change can result in selective pressure that are individual specific and which are better adapted to the new temperature, causing populations to evolve.

Temperature changes could also alter the availability of food type and thus create a selective pressure towards individuals that can take advantage of the different food sources.

Answer:

Just one round without DNA repair

Explanation:

When an error occurs before or during replication, in a normal system, there is always proofreading and correction. If the error is not corrected during replication, it can then be corrected by the DNA damage repair system. But if not also corrected, the error becomes fixed and subsequent replication will produce this error

Answer:

Explanation:

Cell specialization is the process of cell differentiation. In this process the generic or normal cells in the body change their specific forms and functions to perform certain specific tasks in the body. This varies with the cell type for example, in young development embryos the stem cells proliferate and differentiate to support the development of body parts and organs in the body whereas in the case of stem cells in adults are specialized to replace the worn out cells of the brain, bones, blood and heart. Thus the specificity of the stem cells varies during various stages of life span of an organism that is from birth till the death.

Cell specialization varies according to the type of cell and over the life span of the organism. This variation allows for increased efficiency of the cells to perform their respective roles in the organism. The process, known as cellular differentiation, involves varying gene expressions, with stem cells representing the unspecialized stage.

The potential for specialization varies with cell type and over the life span of an organism based on the function they are required to perform. Organisms start their life from a single fertilized egg cell, which then divides to give rise to trillions of cells. Through a process known as cellular differentiation, these initially similar cells become specialized in both structure and function.

Cells in multicellular organisms like humans become specialized to allow for increased efficiency. Different sets of genes are expressed in different cells leading to their unique functions. For instance, a muscle cell is different from a liver cell, meeting their respective functional requirements for the organism. This variation in specialization continues over the lifespan of the organism, including the changes in gene expression to adapt to environmental changes.

Before a cell becomes specialized, it is known as a stem cell. These cells can divide into more stem cells or differentiate into various specialized cell types. While an already specialized cell generally remains as such, research is ongoing to coax these cells in the lab to become a different specialization.

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