Answer:
The correct option is A.
Explanation:
There are two basic types of reproduction, they are asexual and sexual reproduction. Asexual reproduction involves the division of a mature organism into two different organisms through binary fission or other forms of asexual reproduction. In this case the offspring is similar both physically and genetically to the parent organism. There is no genetic diversity in this case and the same disease can easily wipe out the entire population of the organism.
Sexual reproduction on the other hand requires two different organisms. During the reproductive process the genetic materials from the two organisms get mixed up thoroughly, so they end up giving birth to offspring that are quite different from them genetically.
The diversity in genetics makes it possible for the offspring to cope with changing environmental conditions. Because, the offspring are diverse in constitution, some offspring will always be able to survive harsh environmental conditions due to their genetic make up.
Answer:
The Option A is correct i.e.
Sexual organisms increases genetic diversity for changing environments
Explanation:
Reproduction is the biological process by which new organisms are produced from their parents.
In asexual reproduction, an organism can reproduce without the involvement of another organism. By asexual reproduction, an organism creates a genetically similar or identical copy of itself.
Sexual reproduction typically requires the sexual interaction of two specialized organisms, called gametes, which contain half the number of chromosomes of normal cells and are created by meiosis, with typically a male fertilizing a female of the same species to create a fertilized zygote. This produces offspring organisms whose genetic characteristics are derived from those of the two parental organisms.
The diversity in genetics makes it possible for the offspring to cope with changing environmental conditions. Because, the offspring are diverse in constitution, some offspring will always be able to survive harsh environmental conditions due to their genetic make up.
What are the importance of bacteria in food production?
Final answer:
Bacteria are essential in food production, serving a vital role in the fermentation process of various foods. In addition, they contribute to the digestion process, aid in nutrient recycling in ecosystems, and can be utilized to produce medicines.
Explanation:
Bacteria play a crucial role in food production due to their ability to ferment and break down organic compounds. One example is the production of cheese, where bacteria convert milk sugars into lactic acid, causing the milk to curdle and form cheese. Bacteria are also used in the fermentation process of other foods like yogurt and sauerkraut. Additionally, bacteria in the human digestive tract aid in digestion by breaking down food and producing essential vitamins.
Furthermore, bacteria are important decomposers in ecosystems, recycling nutrients such as nitrogen back into the environment. In the laboratory, bacteria can be manipulated to produce useful materials and medicines. For instance, insulin, used to treat diabetes, can be produced using bacteria as tiny factories.
Role of RNA in gene expression is to
Answer:
serves as an intermediate molecule that translates the instructions from DNA into protein.
Explanation:
Answer:
The correct answer is -
In transcription- code the information present in DNA into an mRNA molecule.
In translation- move to the cytoplasm and translate the code into the amino acid sequence with the help of tRNA and rRNA.
Explanation:
Gene expression is the process in which the molecule in which all information present in DNA, first transcribed to RNA and then move to the cytoplasm to translated from RNA to protein with the correct sequence of the amino acid.
RNA plays an important role in gene expression. Each step involves different RNA molecules such as mRNA that is a transcribed RNA molecule that carries information from the nucleus to cytoplasm and binds with another molecule of RNA known as tRNA that translates coded mRNA to the protein.
Thus, the correct answer is -
In transcription- code the information present in DNA into an mRNA molecule.
In translation- move to the cytoplasm and translate the code into the amino acid sequence with help of tRNA and rRNA.
need help on this !!
A banana plant produces rhizomes, which are involved in ______.
A rhizome is a horizontal underground stem used by banana plants for asexual reproduction, leading to the creation of genetically identical new plants, or clones, and is critical for species propagation, especially in seedless varieties.
Explanation:A rhizome is a type of horizontal underground stem that plays a crucial role in vegetative, asexual reproduction in certain plants, such as the banana plant. These structures are specialized storage organs that also enable the clonal propagation of the plants. When a rhizome grows, it can give rise to new plants that are genetically identical to their parent plant. In the case of bananas and many grasses, this mechanism is particularly important because it perpetuates the organism even if the original stem flowers, senesces, and dies. Thus, rhizomes are crucial for the survival and spread of these species, especially for those varieties that do not produce viable seeds.
Other plant structures, such as corms, tubers, and bulbs, also provide similar functions by storing food and enabling asexual reproduction, although they differ in form and growth patterns. Each of these modifications allows plants to thrive in a variety of environments and adapt better to different habitat conditions.
Final answer:
Banana plants reproduce via rhizomes, underground stems specialized in vegetative asexual reproduction, creating clones of the parent plants. Other stem modifications like stolons, runners, and tubers also assist in reproduction and food storage.
Explanation:
A banana plant produces rhizomes, which are involved in vegetative asexual reproduction. Rhizomes are essentially horizontal underground stems that enable a plant to propagate and extend its reach vegetatively. These specialized structures allow plants like the banana to grow new plants that are genetically identical, or clones, of the parents, ensuring that any favourable characteristics are preserved. Furthermore, through vegetative propagation, the banana plant can thrive even if the original stem flowers and then dies, as the rhizomes can continue to live and create new shoots.
In addition to rhizomes, there are other stem modifications such as stolons, runners, corms, tubers, and bulbs, which also play a role in vegetative reproduction and storage of food. These adaptations enable plants to survive in a variety of environments and conditions, demonstrating the botanical richness and diversity in the plant kingdom.
Who discovered The monomers of nuclei acids
Answer:
Phoebus Levene
Explanation:
Since he performed hydrolysis experiments on nucleic acid. He also discovered that DNA is composed as a series of monomers called nucleotide.
The forensic biologist _____ by the American Board of Criminalistics.
A. may be certified if requirements are met
B. must be certified if requirements are met
C. is paid
Answer:
The most appropriate answer option is B. must be certified if requirements are met.
Explanation:
The forensic biologist must be certified if requirements are met by the American Board of Criminalistics.
Option B seems to be the most appropriate answer to complete the given statement.
Forensic Science requires specific expertise for every field. Therefore, forensic biologists have certain requirements that they need to meet in order to achieve professional certification.
What are three ways plastics negatively affect oceans
Apex semester 2
5.1.3
Plastics negatively affect oceans by causing entanglement of marine life, ingestion of plastic leading to health issues for marine organisms, and the breakdown into microplastics which carry toxins and enter the food chain.
There are three ways plastics negatively affect oceans, causing significant harm to marine ecosystems and biodiversity. First, plastics lead to entanglement, where marine animals become trapped in items such as old fishing nets or six-pack rings, leading to injury or death. Second, plastics present a danger when ingested by marine organisms who mistake it for food, potentially causing choking, internal injuries, and a reduced capacity for ingesting actual nutrients.
Third, as plastics break down into microplastics, they become pervasive in marine environments, entering the food chain and often carrying toxic substances which subsequently accumulate in organisms, including humans.
Human hair has which type of cuticle?
Answer:
Human hair has cuticle scales that are flattened and narrow, also called imbricate. Animal hair had different types of cuticles that is described and pictured later in the chapter under animal hair. The cuticle is a transparent outer layer of the hair shaft.
The cuticle of human hair is the outermost layer composed of very hard, keratinized cells. These cells originate from the hair matrix in the hair bulb and form the visible part of the hair when they are pushed to the skin surface and keratinize.
Explanation:Human hair consists of multiple layers, with the cuticle being the outermost one. This layer is made of a series of very hard, keratinized cells that protect the inner layers of the hair shaft. The production of these cells originates from the hair matrix in the hair bulb, a part of the hair root that lies deep in the skin.
As the basal cells of the hair bulb divide, new cells are pushed outward, forming the cuticle and other layers of the hair shaft. Once these cells are pushed to the skin surface, they keratinize complete, forming the external part of the hair that we see. This process is what forms the shaft of hair that is visible to us.
The entire external hair, including the cuticle, is composed entirely of keratin. Hence, our hair does not have any sensation. It is also why humans can cut or shave their hair without causing damage to the hair structure.
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A group of scientists are studying the effects of different fertilizers on the growth of pea plants. They began their study with 10 pea plants. They gave each plant a different type of fertilizer and tracked their growth over a period of 2 months. What's the independent variable in this experiment?
Answer:
Fertilizers
Explanation:
The independent variable is the variable that is manipulated or changed to trigger a change on the dependent variable. The dependent variable is the variable that is not manipulated, but it changes depending on the independent variable. In the case of this experiment, the scientists wanted to see if the different fertilizers have an effect on pea plants' growth. To determine this, they would have to use different types of fertilizers, so this meanst hat the fertilizers will be changed.
what will most likely happen to a plant that does not receive enough CO2
Answer:
the Calvin Cycle will produce less glucose
Explanation:
apex
A scientist wants to determine the effect of a new type of gasoline. He fills
one car with normal gasoline and another identical car with the new gasoline.
Which is the control group?
A. The new type of gasoline
B. The car with the normal gasoline
c. The car with the new gasoline
The amount of gasoline used
D. The amount of gasoline used
Answer:
The correct answer is B) The car with normal gasoline.
Explanation:
A control group is the one that shows "normal" or common characteristics. In this case, the normal group is the one with the usual gasoline. In other fields, the control groups could be the blank ones, like in chemistry or the average ones. In general, control groups show a pattern that could be comparable to the other ones in order to establish whether there was a change or difference or not.
Which process is not a way in which cells maintain homeostasis?
A) Communicating with other cell
B)Taking in the molecules they need
C)Breaking down Unneeded molecules
D)Changing their external environment
Answer:
Changing their external environment
Explanation:
Answer: D) Changing their external environment
Explanation: cells cannot change their external environment to maintain homeostasis. They communicate with other cells via cell signaling, they take up nutrients for sustainability and growth, cells also breakdown unwanted molecules as a way of waste management.
But cells don't change their external environment to maintain homeostasis.
How explosively or quietly a volcano erupts is not affected by the _____.
magma’s composition
magma’s temperature
size of the volcano’s cone
concentration of dissolved gases in the magma
Answer:
size of the volcanos cone
Explanation:
The size of volcano's cone does not affect how explosively or quietly a volcano erupts.
What is a volcano?.A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Volcanoes are closely associated with plate tectonic activity. Most volcanoes, such as those of Japan and Iceland, occur on the margins of the enormous solid rocky plates that make up Earth’s surface.
Therefore, third option is the correct answer.
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which category do you think humans belong to? Why do you think they fit in this category?
Answer: Animal
Explanation: Us humans are an animal because we don’t make our own food like plants do. We kill and eat other plants and animals.
Answer:
Pluto
Explanation:
A taxon ending in ophy
Answer:
indicating the organism is a plant
Explanation:
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Also I know all the answers to the test so I can help you if you ask other questions
An organism's reproductive strategy includes all of the following except
A. The length of time parental care is given
B. The amount of energy expended in producing offspring
C. The number of offspring produced
D. The way that a species hides from pray
Answer:
D
Explanation:
Reproductive strategy refers to the way organisms of a species mate and raise their offspring in a natural strategy to increase their reproductive success. Natural selection will always choose the method that improves biological fitness. There are two main types of reproductive strategies; R-strategists and K-strategists. The former involves reproducing a lot of offspring but with little parental care. The latter involves reproducing few offsprings but with greater parental care.
In biological terms, an organism's reproductive strategy involves factors such as energy used in offspring production, number of offspring, and parental care time. The way species hide from prey is related to survival, not reproduction.
Explanation:An organism's reproductive strategy is defined as the set of behaviors that have evolved to maximize the reproductive fitness or success of an organism. This strategy includes factors like the amount of energy expended in producing offspring, the number of offspring produced, and the duration of parental care provided to the young ones. However, the way a species hides from prey is not considered a part of the reproductive strategy because it pertains more to an organism's survival strategy and not directly related to reproduction.
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Meningitis and food poisoning are two examples of illness caused by which type of pathogen?
A. Bacteria
B. Fungi
C. Parasite
D. Virus
Answer: a
Explanation:
Meningitis and food poisoning are two examples of illness caused by pathogenic bacteria called Neisseria meningitidis. Food poisoning can also caused by bacteria. Hence Option A is correct.
What is Meningitis ?An inflammatory condition arises at the outer membrane or meninges of brain and spinal cord, give rise to an illness called as meningitis.
The source of meningitis can be either bacterial or viral, some are even fungal form.
The major symptoms of bacterial meningitis include paralysis, stroke, seizures, even death.
The different bacteria cause meningitis are streptococcus pneumoniae, Neisseria meningitidis, Haemophilus influenzae etc.
The other symptoms include high fever, neck become stiff, headache, nausea, vomiting, confusion, rashes.
The major way bacteria can transfer from infected to healthy person are coughing, sneezing etc.
Hence Option A is correct.
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If all of our cells have the same dna in them how is it possible that we have different cells such as stomach cells vs eye cells
Different cell types like stomach cells and eye cells arise from having the same DNA, but expressing different genes within that DNA, allowing for the unique structure and function required by each cell type.
Each somatic cell in our bodies generally contains the same DNA. However, this does not mean that all cells are the same. The reason we have different types of cells, such as those in the stomach versus the eye, lies in the process called gene expression. While every cell has the same genetic code, not all genes are active, or 'expressed', in every cell. Depending on the type of cell and its function in the body, only specific genes are turned on to produce the proteins needed for that cell's unique duties.
Hence, stomach cells will have a different set of active genes compared to eye cells, resulting in their distinct structures and functions. This specialization is orchestrated through a highly regulated process where certain factors determine which genes should be active and which should remain dormant, ensuring that the right proteins are produced at the right time for the proper function of each cell.
3. In addition to surface tension, what's responsible for driving ocean waves?
A. Thermohaline circulation
B. Centrifugal force
C. The Coriolis effect
D. Drag from wind
Answer:
The Coriolis effect- C.
Answer:
The answer is: C. The Coriolis effect.
Explanation:
The Coriolis effect affects the direction of rotation of various elements on the earth's surface such as hurricanes or water.
The answer is: C. The Coriolis effect.
In what part of a chloroplast does glucose production occur?
A. ATP synthase
B. Photosystem II
c. Photosystem
D. Stroma
Hello There!
The part of the chloroplast that glucose production occurs in is called
"The Stroma"
An element has an atomic mass number of 16 and an atomic number of 7.
What are strength and weaknesses of photosynthesis?
Answer: Answer down below
Explanation:
A good reason to have photosynthesis: helps flowers, plants and grass growHelps us have crops to eat (and for farmers to sell)If we lost photosynthesis (the not-so-great part): plants wouldn't grow like they are supposed to.They might even die offYou won't be able to have enough healthy herbs and vegetables to fight off the bad things in life.
The model’s strength is that it clearly shows that the process is quite complicated and that it takes place in different parts of the chloroplasts. It also shows most of the major molecules produced. But it doesn’t show the major steps of the Calvin cycle, so that’s a weakness of the model. It also doesn’t clearly show the process of the electron transport chain.
PLATO
This chart shows the types of ground tissue and their functions.
Parenchyma
Collenchyma
Sclerenchyma
A
for food production and
storage
for strength and support
For protection and
support
B
For secretion of substances
like nectar
For conduction of materials
throughout the plant
For healing of plant
parts
C
For strength and support
For protection and support
For food production and
storage
For healing of plant parts
For protection and support
For strength and
support
Which row (ABC or D) best matches each ground tissue with its function?
Answer:
For food production and
storage.
For strength and support
For protection and
support. (Ans. A)
Explanation:
Parenchyma: These cells are responsible for the formation of many other tissues and cells. These cells are mostly found in the soft part of the plant. Cell shapes of these cells are isodiametric and cell wall (composed of cellulose) thin in structure. Between these cells intracellular space is present. Main function of these cells are storage of food, in photosynthesis and exchange of the gaseous particles.
Collenchyma: The epidermal cells present on plants are made up of these cells. These cells are found in the petioles, leaves, and stems. Cell are elongated in shape and cell wall (composed of cellulose and pectin) is uneven. Less intracellular space present between the cells. Main function of these cells are providing mechanical support.
Sclerenchyma: Hard and outer parts of the plant made up of these cells. These cells are present in the mature parts of the plant. Cells are elongated, fiber in shape and cell wall (composed of lignin) hard and thick. Intracellular space is not present in these cells so these are tightly packed. Main function of these cells are providing protection and support.
Answer:
A the other person does too much explanation
Explanation:
Two nursing assistants are in line to wash their hands at a hospital after leaving a patient in an isolation room. The first NA
washes her hands and then uses her hands to turn off the faucet before drying them with a paper towel. The second NA
turns on the water with her hands and then proceeds to wash and dry her hands with a paper towel.
Which statement best describes errors demonstrated by the nursing assistants?
The first NA did not ensure a clean hand-washing environment, and the second NA did not properly turn off the water
The first NA did not properly turn off the water, and the second NA did not ensure a clean hand-washing environment.
The first NA did not properly turn off the water, and the second NA did not properly use paper towels.
The first NA did not properly use paper towels, and the second NA did not ensure a clean hand-washing environment.
I think the answer is C. The first NA did not properly turn off the water, and the second NA did not properly use paper towels.
When you are to close off the sink you use the paper towel used to dry your hands. When the first NA opened the sink the hands where dirty, the NA then proceeded to close the sink with the washed hands.... now the hands are contaminated yet again.
The second NA used the paper towel to wash AND dry the hands. You are supposed to use soap for 30 seconds and then rinse for 30 seconds. The towel is to be used only when drying and not washing.
I hope this helps! :)
Answer:
The answer your looking for is C
Explanation:
which type of transport is responsible for oxygen entering into blood cells?
A. Vesicle
B.Passive
C. Facilitated
D.Active
Answer: B.Passive
Answer:
Diffusion transport is responsible for oxygen entering blood cells because when the oxygen concentration in the alveoli in the lungs are too high it diffuses with the red blood cells by giving it oxygen and receiving carbon dioxide.
Explanation:
Passive or diffusion transport is responsible for oxygen entering into blood cells.
How does oxygen enter blood cells?Simple Diffusion also known as passive transport is how oxygen gets into blood cells. Because it is traveling from a high concentration to a low concentration, oxygen diffuses from the alveolus into the blood and blood cells as oxygen-depleted blood passes through a capillary in an alveolus (plural of alveoli).The lungs' alveoli release oxygen into the RBCs, where it diffuses and binds to hemoglobin. Four oxygen molecules can be bound to one hemoglobin molecule (O2).learn more about Passive transport here:
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How does energy travel in an ecosystem?
Answer:
Through the food chain.
Explanation:
Answer:
Energy passes through one organism to the next. Autotrophs, like plants, absorb energy from the sun and make their own food. Then heterotroph herbivores, like a rabbit, consume the plants and only gain 1/10 of the energy that plant had. Next comes a carnivore or omnivore heterotroph, like a snake, they recieve 1/10 of the energy of their food. And then another carnivore or omnivore, like an eagle, will receive 1/10 of the energy of their food.
Explanation:
Question 3 of 10
2 Points
Scientists draw conclusions based on evidence that has been gathered
through observation, experience, and experimentation. Which of the following
terms best describes this kind of evidence?
A. Empirical
B. Biased
C.Peer-reviewed
D. Factual
SUBMIT
Answer:
The answer is A Empirical
How does an ecosystem change during succession?
A it has fewer species
B it becomes less stable
C it become smaller
D it has more biodiversity
Answer:
the answer would be (D) it has more biodiversity.
Explanation:
Ecological succession is what makes up all the different varieties of species in plants and animals. It changes it by having earths ecosystem be more diverse biologically. Hope this helps!
Which statement describes what happens to elements during radioactive decay?
A-They release energy.
B-They gain new particles.
C-They lose energy at a varying rate.
D-They have a consistent number of particles.
Answer:
The correct answer is option A-"They release energy".
Explanation:
The phenomenon of radioactive decay, also known as radioactivity or nuclear radiation, occurs when an unstable atomic nucleus emits radiation and loses energy and mass in the process. The elements during radioactive decay release energy and mass trying to reach a stable form. The material that has the unstable nucleus is considered radioactive.
Answer:
Option (A)
Explanation:
Radioactive decay is usually defined as a process by which an unstable nucleus of an atom continuously disintegrates into a stable nucleus, resulting in the liberation of a large amount of energy as well as matter.
The radioactive substances undergoes radioactive decay and these released energy is very harmful as they are emitted in the form of ionizing radiation.
These process of radioactive decay is commonly known as radioactivity.
Thus, the correct answer is option (A).
At the complete end of cellular respiration, how many molecules of ATP are produced? A. 15 B. 26 C. 38 D. 34
Answer:
At the complete end of cellular respiration, how many molecules of ATP are produced? A. 15 B. 26 C. 38 D. 34
Explanation:
AEROBIC CELLULAR RESPIRATION OR is the set of reactions in which the pyruvic acid produced by glycolysis is transformed into CO2 and H2O, and in the process, 36 molecules of ATP are produced.
The closest answer is between: C. 38 D. 34.