Answer:
the answer is B) The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.
Explanation: hope that helps <3
Centromers split during ...
A. Prophase
B.metaphase
C. Anaphase
D. Telophase
Answer:
C
Explanation:
Meiosis: The centromeres do not separate during anaphase I, but during anaphase II.
Mitosis: The centromeres split during anaphase.
Answer: prophase II
Explanation:
Just did the assignment
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14. A fox population eats rabbits that have a population cycle of about ten years. Which is a likely effect of the foxes preying on the rabbits?
A. The rabbits will change to a five-year population cycle.
B. The rabbits will change to a twelve-year population cycle.
C. The foxes will have a ten-year population cycle.
D. The foxes will have a five-year population cycle.
Answer:
C. ) The foxes will have a ten-year population cycle.
Explanation:
Under what conditions can pieces of DNA be artificially combined?
Answer:
Combining pieces of DNA artificially is known as DNA cloning, the DNA formed is known as recombinant DNA.
Explanation:
The donor DNA that is to be combined is cut into fragments in specific sequences using restriction enzymes which are individually introduced to replicating DNA molecules such as bacterial plasmid known as vectors.
The process is Isolating -> Cloning -> Sequence DNA.
a. Which form of nitrogen in the soil is NOT usable by organisms?
b. Why is this form not usable? Be specific.
c. How can this form be made usable to organisms?
Answer:
A)Fixation. Nitrogen in its gaseous form (N2) can't be used by most living things
B) it can not be used because it most be converted or, ’fixed’ to a more useable form. To do this it goes through a process called fixation.fixation is the change in a gene pool from a situation where there exists at least two variants of a particular gene (allele) in a given population to a situation where only one of the alleles remains.
C) This form can be made more usable if it’s converted. It has to go through the process of fixation so the gene pool changes.
Explanation:
Nitrogen in the form of gas i.e., nitrogen molecule (N₂) in soil is not usable by the plants. This form cannot be used by the plants as plants do not have any enzyme which can use this molecule.
What is Nitrogen fixation?Nitrogen fixation is any natural or industrial process that causes free nitrogen (N₂), inert gas in air, to combine chemically with other reactive elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites that can be used by the plants.
Nitrogen in its gaseous form (N₂) cannot be used by most of the living things. Plants do not have the required enzymes to use of atmospheric nitrogen. This molecule has to be converted or 'fixed' to a more usable form through a process called fixation. This requires specific enzymes and conditions.
Nitrogen molecule converted into nitrate, nitrite, and ammonia by the plants through the process of nitrogen fixation are then used by the plants and other living organisms.
Learn more about Nitrogen fixation here:
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Which of the following is an example of a physical trait? A. nesting B. hair color C. burrowing D. cystic fibrosis
Answer:
B. hair color
Explanation:
A physical trait generally means something you can see with the naked eye and discern what it is. Hair color is a physical trait, because you can tell what the person's general hair color is just by looking at it.
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Answer:
B) hair color
Explanation:
um a physical traits are features or characteristics about your body so I eliminated the answer choices that were not features about your body and that's how I got my answer
i'm bad at explaining