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erma4kov [3.2K]
3 years ago
15

Identify the structure represented in the picture . Then, identify the parts labeled A—D.

Biology
1 answer:
Fudgin [204]3 years ago
4 0

Explanation:

it is the diagram of an ovum or a human egg

A- follicle cells

B- zona pellucida

C- chromosomes

D- vitelline membrane

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Which of these describes a situation where natural selection could lead to evolution?
Gennadij [26K]

Answer:

B. Predation removes slower antelope from the herd.

Explanation:

Natural selection is defined as the differential survival and reproduction of individuals due to differences in the physical characteristics.

A predator-prey relationship results in a very fast-slow dynamical system for rapid predator evolution.

Predation removes slower antelope from the herd and hinders passage of the slow trait to offsprings. The ones who are fast reproduce and give birth to other fast animals.

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3 years ago
Populations adapt to changing environmental conditions as a result of __________. populations adapt to changing environmental co
barxatty [35]
Natural selection is the process that result in the adaptation of an organism to environment by means of selectively reproducing changes in its genotype, or genetic constitution. It is the a key mechanism of evolution. Charles Darwin popularised the term "natural selection" contrasting it with artificial selection, which is intentional, whereas natural selection is not.
To make it simple, let's have a group of beetle composing of green and some are brown as an example. here, there is a variation in traits. Since the environment could not support continuous population growth, not all species can reproduce to their full potential. Green beetles can easily be eaten by other species like birds compared to brown beetles. The surviving brown beetles will then generate brown offsprings because their trait has a genetic basis. Since more brown beetles survive and becomes more common in the population, the process continues until all individuals will eventually be brown. so basically, if you have variation, differential reproduction, and heredity, you will have evolution by natural selection as an outcome.
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2 years ago
The _____ is the developing human organism from about 2 weeks after fertilization through the secon
natali 33 [55]
The _Embryo_ is the answer

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In prophase, this form of DNA is loose, uncoiled, and unorganized in the nucleus.
nikklg [1K]

Answer:

Chromosomes

Explanation:

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Answer: 1, 2, 5 is the correct answer

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Explanation:

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