Answer:
To make sure that the experiment is accurate, the scientist must make carry out an appropriate observation, which would lead to the formation of good hypothesis. Good experimental method is an other criteria to look forward for the accurate experimental results. Methods are applied in collection of data and other things and in compiling results using statistical methods to carry out an accurate experiment.
What limitations were placed on the presidency by
the Twenty-Second Amendment? Check all of the
boxes that apply.
Presidents could only be elected to office
twice.
Presidents could no longer choose vice
presidents as running mates.
Presidents could only serve for a maximum
of ten years.
Presidents could only be elected after serving
in Congre As.
Answer: A) Presidents could only be elected to office twice.
Explanation:
The 22nd Amendment states
"No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once."This Amendment was passed in 1951 as a direct result of President Franklin D. Roosevelt serving four terms as President of the United States.
What is a substrate?
Answer:
A substrate is a molecule acted upon by an enzyme. A substrate is loaded into the active site of the enzyme, or the place that allows weak bonds to be formed between the two molecules. An enzyme substrate complex is formed, and the forces exerted on the substrate by the enzyme cause it to react, and become the product of the intended reaction. The bonds that form between the substrate and enzyme cause the confrontational change, or shape change, in the enzyme. The resulting shape change is what applies pressure to the substrate, either forcing molecules together or tearing them apart.
what is the term for the two sets of chromatids formed in the parent cell A.haploid
B.Diploid
C.Gamete
D.Tetrad
Answer:
TetradExplanation:
Tetrad is the term for the two sets of chromatids formed in the parent cell. Thus, the correct option is D.
What are chromatids?Chromatids are refers to as which allow cells to store two copies of their information in preparation for cell division. This is important to establish that daughter cells are healthy and fully functional and carrying a full complement of the parent cells DNA.
Chromatid permits cells to store two copies of their information in formation for cell division.
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18. Which process does the plant need energy to perform?
A. Absorbing water into the root hairs
OB. Release of oxygen into the atmosphere
C. Transpiration of water
OD. Pulling nutrients into the root hairs
Answer:
. Absorbing water into the root hairs...Answer:
OD. Pulling nutrients into the root hairs
Explanation:
Uptake of minerals, ions into root hairs from the soil is done on the expense of energy. This type of absorption is called active transport because minerals are in higher concentration in the root hairs as compared to the soil. Plants need more nutrients such as amino acids on the expense of energy actively.
Sickle-cell anemia is an example of codominance. What implications does this have for people with one or two copies of the sickle-cell gene?
A. People with two copies of the mutated gene have healthy red blood cells. People with one copy of the mutated gene don't have the disease but are carriers of the disease.
B. People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have healthy red blood cells.
C. People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease.
D. People with two copies of the mutated gene are carriers of the disease. People with one copy of the mutated gene don't have the disease.
Answer:
The correct answer is C
Explanation:
Codominance means that the result of two different genes will give separated characteristics of both. For example, if an animal has a gene of red skin and another gene of white skin, it will have red in some parts of the body and white skin in other parts. It can be confused with incomplete dominance, which combines the characteristics of the genes, in these case the skin would be pink, the combination of white and red. People who have one gene of it are carriers of the disease of course, because it can be passed to their sons.
People with two copies of the sickle-cell gene have sickle-cell anemia, while individuals with one copy are carriers and generally healthy without the disease symptoms but can pass the trait onto their offspring, option B is correct.
Sickle-cell anemia is an example of codominance and autosomal recessive inheritance. When individuals have two copies of the mutated gene, they have sickle-cell anemia, characterized by red blood cells that can become misshapen, or 'sickled,' under certain conditions. This causes serious health complications. For those with only one copy of the mutated gene (heterozygous), they display what is known as 'sickle cell trait.' These individuals generally do not suffer from the symptoms of sickle-cell anemia and are often healthy, but they are carriers of the disease. Their red blood cells may sickle under extreme conditions, but typically, they have a mix of normal and abnormal hemoglobin. As carriers, they have the potential to pass the mutated gene to their offspring.
What is the function of the somatic nervous system?
connects the brain and the spinal cord to the rest of the body
carry signals to the muscles and glands
includes all nerves controlling the muscular system and external sensory receptors
controls internal organs like the heart and bladder
The function of somatic nervous system is to connect the brain and the spinal cord to the rest of the body.
Option A
Explanation:
The "Somatic nervous system" is division of "peripheral nervous system". Somatic nervous system has two categories of neurons which differ in their mode of impulse transmission these are afferent neurons that carries the signal from sensory receptors of the body to the central nervous system (CNS) and efferent neurons that carries the nerve impulses from the CNS to the other parts of body which have voluntary muscles hence forming a reflex arc. Afferent neurons (sensory neurons) and efferent neurons (motor neurons) are only involved in controlling the voluntary muscles.
how much of haiti's forests have been cut down ?
a. 1%
B25%
c.50%
d.98%
Answer:
98%
Explanation:
technically it is 99% but seeing as that is not an option it must be 98%
Answer:
D - 98
Explanation:
Which statement describes the impact of ocean currents on climate
Answer:
Ocean currents create changes in the temperature of air over land masses
Explanation:
Oceans capture a lot of heat from the sun than land. This is because water has a very high heat capacity. This heat becomes distributed across the globe through oceans currents. The water vapor that evaporates from the oceans heats up the atmosphere creating low-pressure systems. These create winds that blow up the heat and moisture over land creating rain/precipitation. This influences climatic systems across the globe.
Answer:
B:Ocean currents cause the temperature of air over large bodies of water to change.
Explanation:
Which statement is NOT true about science?
a Science approaches data in a subjective manner.
b Science attempts to avoid prejudice in making judgments.
c Science is concerned about understanding the natural world.
Answer:
Science approaches data in a subjective manner....
Answer:
c
Explanation:
How is the male reproductive system different from other body systems?
It isn’t necessary to vital signs.
It monitors other body systems, and adjusts if necessary.
It transports items from one system to another.
It is the only system that produces hormones in the male.
Hello There!
The question you asked is how is the male reproductive system different from other body systems?
The answer is "It isn’t necessary to vital signs."
unlike other body systems, the male reproductive system is not essential for the life of a living organism.
Answer:
A. It isn't necessary to vital signs.
Explanation:
The Male Reproductive System is made up of internal and external organs. They undergo a slow maturation ending in puberty, that is, when the sex cells are available to originate another being. This system differs from other systems in the body because it does not need vital signs.
The organs that make up the male reproductive system are: urethra, penis, seminal vesicle, prostate, vas deferens, epididymis and testicles.
Using the drop-down menus, identify the
structures common to all cells.
How is DNA copied?
A. The sense strand of DNA is used as a template to create both strands of the new double helix.
B. The mRNA made from the DNA is used as a template to create a complementary strand of DNA.
C. Each single strand of DNA is used as a template to create a complementary strand of DNA.
D. The antisense strand of DNA is used as a template to create both strands of the new double helix.
Answer:
A) The sense strand of DNA is used as a template to create both strands of the new double helix.
Explanation:
Ok, the DNA is "copied" in the tanscription process. The transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). Also, the DNA safely stores genetic material.
During the process of transcription a single strand of RNA is synthesized using a double stranded DNA molecule as a template. The two strands of the DNA molecule are separated from one another, exposing the nitrogenous bases. Only one strand is actively used as a template in the transcription process, this is known as the sense strand, or template strand. The complementary DNA strand, the one that is not used, is called the nonsense or antisense strand.
Which symbol is used to label a male that expresses a sex-linked disorder on a pedigree?
Answer:
black solid colored square box
Explanation:
A sex-linked disorder of male on a pedigree is expressed by a black solid colored square box.
While a male that is just the carrier of sex-linked disorder is represented by by a square box whose half part is solid black in color while the other part is colorless.
A colorless square box in a pedigree signifies a male that is neither affected by any trait associated with sex linked disorder nor even is a carrier of any trait/disorder.
On a pedigree, a male that expresses a sex-linked disorder is labeled with a shaded square. The shading is used to indicate that the individual has the disorder or is affected by it. This is because sex-linked disorders, such as hemophilia or color blindness, are caused by mutations on the X chromosome, and males only have one X chromosome.
What is a sex-linked disorder?A sex-linked disorder is a genetic disorder that is caused by an abnormality on the sex chromosomes, which are the X and Y chromosomes that determine an individual's sex.
Sex-linked disorders are typically caused by mutations on the X chromosome, as the Y chromosome is smaller and carries fewer genes. Because females have two X chromosomes and males have one X and one Y chromosome, sex-linked disorders are usually more common in males.
Therefore, if a male inherits an X chromosome with a mutated gene, he will express the disorder, as there is no second X chromosome to compensate for the mutation.
Females, on the other hand, have two X chromosomes, and the presence of a mutated gene on one X chromosome can often be compensated for by a normal gene on the other X chromosome. Therefore, on a pedigree, females who are carriers of a sex-linked disorder are labeled with a shaded circle.
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20. In humans, freckles are dominant to no freckles. Trey has no freckles and his wife Anna Grace has
freckles, but her dad doesn't. They want to know what percentage of their kids would look like Trey.
Show a Punnett Square to support your answer.
Their Punnett Square is as follows: Since Trey has no freckles and Anna Grace has freckles, their children have a 50% chance of having freckles and a 50% chance of not having freckles.
| F | f |
|---|---|---|
| f | ff | Ff |
| f | ff | Ff |
Since Trey has no freckles, we know that he has the recessive genotype (ff). Anna Grace has freckles, but her dad doesn't, which means that she must be heterozygous for the trait (Ff).
To build a Punnett square to represent the possible genotypes of their offspring, we write Trey's genotype (ff) across the top of the square and Anna Grace's genotype (Ff) down the left side. Then, we fill in the boxes with the possible combinations of alleles from each parent:
Trey (ff) Anna Grace (Ff)
ff Ff
ff Ff
As you can see, there is a 50% chance that Trey and Anna Grace will have a child with freckles (Ff) and a 50% chance that they will have a child without freckles (ff).
This means that 50% of their children will look like Trey and 50% of their children will look like Anna Grace.
Here is an example of a Punnett square for this cross:
Trey (ff) Anna Grace (Ff)
ff Ff
ff Ff
In this example, the first child would have freckles (Ff) and the second child would not have freckles (ff).
However, it is important to remember that each child has a 50% chance of having either genotype, regardless of the order in which they are born.
Conclusion
In conclusion, Trey and Anna Grace have a 50% chance of having a child who looks like Trey (ff).
This is because Anna Grace is heterozygous for the freckle trait (Ff), and each child has a 50% chance of inheriting the recessive allele from her.
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Final answer:
Trey and Anna Grace have a 50% chance of having a child without freckles (genotype ff) and a 50% chance of having a child with freckles (genotype Ff). The Punnett square shows the genetic probabilities for each possible genotype. Since freckles are a dominant trait and Anna Grace is heterozygous (Ff), there is an equal chance for offspring to inherit freckles or not.
Explanation:
Understanding Genetics and Freckles
In this scenario, Trey has no freckles (ff) and Anna Grace has freckles. As Anna Grace has freckles (a dominant trait), but her father does not, her genotype must be heterozygous (Ff). When Trey and Anna Grace have children, each child has a 50% chance of inheriting an f allele from Trey and a 50% chance of inheriting an f allele from Anna Grace, resulting in genotype ff (no freckles), or a 50% chance of inheriting an f allele from Trey and F from Anna Grace, resulting in genotype Ff (with freckles).
Using a Punnett square, we can visualize the possible genotypes of their offspring:
F f
f Ff ff
f Ff ff
As shown in the Punnett square, there is a 50% probability (2 out of 4) that a child will have no freckles (genotype ff) and look like Trey.
Which of the following is NOT considered a scientific property of water?
Answer:
Carbon bonding
Explanation:
answer it is
Carbon bonding is not considered a scientific property of water. While it possesses scientific properties like cohesion, adhesion, surface tension, etc.
What are Scientific properties?Scientific properties may be defined as all those qualities and measurements which are observed on the basis of physical and chemical aspects of any compound.
The complete question is: Which of the following is NOT considered a scientific property of water? And the options are cohesion, adhesion, surface tension, and carbon bonding.
Water possesses a tetrahedral structure with two hydrogen atoms which are bonded to a centrally positioned oxygen atom. It can allow hydrogen bonding but prevents carbon bonding.
Therefore, carbon bonding is not considered a scientific property of water.
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What is 25 m rounded to one significant figure?
Answer:
20
Explanation:
11. What's a recharge area?
O A. The part of an aquifer where groundwater meets a lake or stream
O B. The part of an aquifer where surface water reaches the water table
O C. The part of an aquifer that's located between two aquicludes
O D. The part of an aquifer that's located at a lower elevation
Answer:
B. The part of an aquifer where the surface water reaches the water table
Explanation:
The aquifers constantly lose water, both in natural way, and because of the human activities, but they also get more water. For the balance to be kept, and the aquifer to be able to exist and dry out, it has to receive water, at least as the amount it is losing. This happens at the recharge area. The recharge area is the area where the surface water is coming in contact with the aquifer. The surface water is providing the aquifer with new water reserves, and it comes from the rainfall, runoff, or maybe the rivers and streams. The water that evaporates, or is extracted, is replenished in this manner, so the aquifer has constant level of water reserves, except if there isn't dramatic changes in the climate, or the extraction is bigger than the replenishing.
Answer:
Option "[tex]B[/tex]" is the correct answer for this question.
Explanation:
A recharge area is the part of an aquifer where surface water reaches the water table
Oxygen enters your body via the respiratory system by moving the
Answer:
B Trachea to the bronchioles to the bronchi because you don't have to breath from your nose
Explanation:
nose to the trachea to the bronchi
What is the input of the light-dependent reactions, labeled X?
CO2, H20, O2, and light
O CO2, H2O, and light
O CO2 and H20
H20 and light
Mark this and return
Sa
Answer:
H20 and light ( last choice)
The correct option is O CO2 and H2O.
In photosynthesis, light-dependent reactions occur in the thylakoid membranes of the chloroplasts. These reactions convert light energy into chemical energy in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).
The input for the light-dependent reactions includes water (H2O) and light energy. Water molecules are split through a process called photolysis, releasing electrons, protons (H+ ions), and oxygen (O2) as byproducts. The electrons are then transferred through a series of electron carriers, generating ATP and NADPH.
While carbon dioxide (CO2) is involved in the subsequent light-independent reactions, also known as the Calvin cycle or the dark reactions, it is not directly an input for the light-dependent reactions. The Calvin cycle utilizes ATP and NADPH produced in light-dependent reactions, along with carbon dioxide, to synthesize glucose and other organic molecules.
Therefore, the input for the light-dependent reactions is CO2 and H2O, making option "CO2 and H2O" the correct choice.
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Eutrophication is caused by___
Answer:
Eutrophication can be defined the process by which the there is a significant increase in the population of algal growth.
This increase in the algal growth is due to the increase in the phosphorous and nitrogen in the water bodies.
The phosphorous increases the growth of algae in the nearby water bodies and depletes the oxygen level in water bodies.
So, Eutrophication is caused by excess of fertilizer(phosphorous) in water.
Which distribution pattern in species can be considered the most easily measurable?A
equal distribution
B. sparse distribution C. local endemios
D. migratory
Reset
Nest
Answer:
C. local endemios
Explanation:
The most easily measurable distribution pattern in species can be considered the one at the local endemios. The reason why the local endemios are the easiest for measuring the distribution is because they live in small area, and only in that particular area, nowhere else in the world. This makes it very easy for measuring their distribution, as the area in which they live is very limited, has clearly defined natural borders, and all of the population is located in there.
Answer: Local endemios pattern is considered one of the most effective measure for distribution pattern in species.
Explanation: Because they live in a same area and only in that particular region,through out the world. As the area in which they live is very limited and have clearly marked out the boundary, and all the population is located in there.
____ are macromolecules that are always non-polar
A. Water
B. Carbohydrates
C. Lipids
D. Proteins
Final answer:
Lipids are always non-polar macromolecules consisting of fats, oils, waxes, phospholipids, and steroids, and are known for their hydrophobic properties. They differ from other macromolecules like proteins and carbohydrates, especially in their role in biological systems such as forming the myelin sheath in the nervous system.
Explanation:
Lipids are macromolecules that are always non-polar. These include various fats, oils, waxes, phospholipids, and steroids. Lipids are known for being hydrophobic, which means they do not mix with water. In contrast, molecules like carbohydrates (which include substances such as cellulose and starch that are polysaccharides) and proteins can have polar characteristics. Also, unlike nucleic acids and proteins, lipids are generally not considered to be antigenic because they do not trigger an immune response as effectively.
It's worth noting that water is not a macromolecule but rather a polar molecule essential for life, and it's not organic. Moreover, some molecules like proteins can be amphipathic, meaning they have both polar and nonpolar regions, thus allowing them to interact with a variety of substances.
Within the nervous system, myelin, which is the insulating layer around nerves, is primarily composed of lipids and proteins. The interaction of these two types of macromolecules contributes to the efficient transmission of nerve impulses.
Which energy pathway can a person without the ability to see color work in?
Answer:
Generation
Explanation:
This would be the answer because there is no color in it.
Hope this helps!⊂:
Fungi can act as decomposers in the environment. Why is this important?
Fungi can act as decomposers in the environment. The importance is degradation or breakdown of materials in wastes and dead organisms to create nutrients for the soil.
Further Explanation:DecomposersDecomposers are heterotrophic organisms which get their nutrition by breaking down remains of dead plants and animals. Examples of decomposers include Fungi, bacteria, snails, etc.DecompositionDecomposition is the process of breaking down the dead remains of plants and animals and wastes to generate nutrients for the soil.It plays an important role in an ecosystem. Importance of decomposition in an ecosystemIt helps in recycling of the nutrients such as carbon and nitrogen in an ecosystem.Dead organic material is broken down into water, minerals, carbon dioxide and other chemicals that can be consumed by plants. Nutrients are returned to the soil from where plants can reuse the same.Therefore, nutrients obtained from the dead organisms and wastes are recycled back into the soil to be used by producers.In addition, they help in removing or cleaning the dead matter and waste material from the ecosystem.Other roles of decomposers in an ecosystem include, nitrogen fixation, nitrogen and carbon recycling and maintenance of the ecosystem by cleaning up dead material through decomposing it and recycling nutrients into the soil.Keywords: Decomposers,decomposition, importance of decomposition to an ecosystem.
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Subject: Biology
Topic: Ecology
Sub-topic: Decomposers
The asthenosphere occupies a majority of the mantle.
Please select the best answer from the choices provided
T
F
Answer:
The asthenosphere occupies a majority of the mantle.
TRUE
Answer: False
Explanation:
The asthenosphere constitutes to about 180 km of the total mantle which is almost 2900 km. As compared to asthenosphere the total area covered is very less.
It cannot be said that it covers a large area of mantle. The asthenosphere is the highly viscous but mechanically weak and ductile region which lies in the upper part of the mantle.
It lies just below the lithosphere in between 80 to 200 km below the surface.
Which ranks these careers that employees are most likely to hire from the least to greatest?
Answer:
Level of employees in the company:
Operator Leader Foreman Supervisor Assistant Manager Manager Deputy General Manager General Manager
Explanation:
Operator
Operator is the name of a position for employees or workers, where this position occupies a position at the lowest level in the ranks of the structure of a factory or company.
Leader
The leader is the name of a position for an employee or factory worker for a position above the operator position and in charge of the operator position within the factory or company structure.
Foreman
Foreman is the name of a position in the ranks of a structure in a factory or company that occupies a position in charge of the position of leader and operator.
Supervisor
The supervisor is the name of a position in the ranks of a structure in a factory or company that acts as the head of a section in a particular division and is in charge of the foreman, leader, and operator.
Assistant Manager
The assistant manager is the name of the position of employee or worker in the management structure of a factory or company that acts as an assistant or assistant manager to activate the liaison between activities in the field with internal divisions or management departments.
Manager
Manager is the name of a position for employees or workers in the management structure of a company or factory that acts as the motor in a division or department.
Deputy General Manager
Deputy General Manager is the name of a position for employees or workers in the ranks of a structure in a factory or company that acts as a representative or assistant to the highest leadership in a division.
General Manager
General Manager is the name of a position for employees or workers in the ranks of a structure in a factory or industry that acts as the highest leader in a division or department.
#AnswerForTrees
Answer:
its d
Explanation:
just in case you got confused on this man or woman above me
10. Which criterion is not used to describe a mass movement event?
A. The angle of the slope
B. The type of material that failed
C. The rate at which the movement occurred
D. The motion of the failure
your answer is:
B. The angle of the slope.
Answer: The angle of the dangle
Explanation:
Question 2 of 10
2 Points
Scientists know that some methods used to increase the food supply are
dangerous to humans. Which method is known to be harmful to human
health?
O
O
O
A. Using genetically engineered crops
B. Spreading pesticides with planes
C. Increasing the number of vertical farms
O
D. Increasing the number of rural farms
Answer: B spreading pesticides
Explanation:
Pesticides can be harmful to humans if consumed and can also alter ecosystems by killing insects that are relied on as a food source by animals and pollinators by plants.
Hormones are chemical molecules produced by endocrine glands. One such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. Which two statements describe the probable reason for the function of the hormone?
The cells in the heart have specific receptors that allow for the intake of hormones.
The heart and the endocrine glands have the exact same types of cells.
All cells make the same types of hormones.
Thyroid hormones show their effect on the heart by means of specialized cells.
Thyroid cells and cardiac cells have different DNA.
The cells in the heart have specific receptors that allow for the intake of hormones and Thyroid hormones show their effect on the heart by means of specialized cells are statement, that describe the probable reason for the function of the hormone. Thus option A and D are correct.
What is hormone?Hormones are signaling molecules which are chemical substances, that work as a messenger in the body of multicellular organisms. For growth of multicellular organisms, including, plants, animals, and fungi hormones play crucial role.
Vertebrates consist of endocrine signaling system, including specialized organ called endocrine gland which secret hormone.
α-type receptors of thyroid hormones are widely shown in cardiac cells and thyroid hormones show their effect on the heart by means of specialized cells called T3 cells.
Therefore option A and D are correct.
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Which hormone is used by both males and female?
Answer:Luteinizing
Explanation:This hormone is considered a gonadotrophin hormone because of its role in controlling the function of ovaries in females and testes in males, which are known as the gonads.
hope this helps
Hello There!
The hormone that is used by both males and females is called "ADRENALINE"
Adrenaline is the body's activator, released in response to anxiety, exercise, or fear. This creates your "Fight-Or-Flight" response.