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Digiron [165]
3 years ago
11

The process of natural selection relies on variation within a population or species and occurs when -

Biology
1 answer:
forsale [732]3 years ago
3 0

Answer:

A

Explanation:

by the definition of natural selection more fit organisms survive and reproduce more, propelling population change.

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Humans come under mammal kingdom in vertebrates.

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Which pair of body systems provide the raw materials that cells need for energy?
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respiratory - digestive

Explanation:

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In the polymerization of DNA, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and _____
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Answer:

The correct answer is 3 prime OH.

Explanation:

The joining of nucleotides takes place by a condensation reaction, which discharges a small, stable molecule. Unlike carbohydrates, proteins, and lipids, the molecules, which is discharged is not water, however, a pyrophosphate, that is, two phosphate groups combined together.  

In the polymerization of DNA, a phosphodiester bond is formed between a free 5 prime phosphate group at one terminal and a free 3 prime hydroxyl group at the other end. The naming of these sequences is done from 5 prime to 3 prime.  

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3 years ago
A zebra needs water to survive. The zebra walks to the watering hole each morning. Which level of organization best describes th
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Science Question 2, Thanks if u help!
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Answer:

The correct answer is option C. The new cells results when they sexually reproduce with each other.

Explanation:

In sexual reproduction, sperm cell of male organism combined with egg cell of female organism forming a fertile zygote. This zygote changes into a new organisms. In sexual reproduction both sperm cell and egg are haploid i. e. half number of chromosome while the zygote is diploid i. e. double number of chromosome.

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