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kupik [55]
3 years ago
12

What are the two components of the central nervous system in vertebrates?

Biology
2 answers:
ivanzaharov [21]3 years ago
6 0
It will be the brain and spinal cord
Molodets [167]3 years ago
4 0

Answer:

The spinal cord and the brain

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Natural Selection: Mastery Test
Finger [1]

Answer:

Genetic diversity in a small population, with a high level of genetic drift and with very little migration will decrease because existing alleles will be lost and few new alleles will be introduced over time (option A).

Explanation:

Evolution - linked to the natural selection and perpetuation of a species - depends, in large part, on three fundamental factors to make it happen:

  • Mutations .
  • Genetic drifts.
  • Migrations.

In small and isolated populations, very little genetic variation, high levels of genetic drift and very few mutations can be observed, which could lead to some alleles being lost and the species may become extinct.

Genetic drift (GD) is an important factor in terms of natural selection, as it is the result of allelic variations that occur from one generation to another. In large populations, GD is low, given the cross between different individuals is greater. A characteristic of GD in small populations is that their levels are very high, and this leads to the eventual loss of alleles.

In this small population, without the possibility of migration -few new alelles will be introduced- genetic variation will decrease, due the genetic flow is low, reducing reproductive fitness and weakening the population's resistance to environmental changes, which could result in the long-term extinction of the species.

Learn more:

Genetic drift brainly.com/question/6389220

8 0
3 years ago
A tornado strips out a section of a forest. What type of succession is this? Why?
Archy [21]

Answer:

Secondary succession

Explanation:

A secondary succession is when a type of disturbance happens when there is <em>already </em>soil present. In this case, it has already started out with a forest (including plants, trees, and wildlife). Other examples of a secondary succession include a wildfire, hurricane, flood, or human destruction.

This is different from a <em>primary succession</em>. A primary succession occurs when  there is <em>no</em> soil present.

3 0
3 years ago
Please help me with this chemistry question!!!I'm stressed!! ​Sorry this is not biology.
lianna [129]

Answer:

100 g sodium carbonate and 100g calcium chloride

3 0
3 years ago
What happens during the process of glycolysis?
maksim [4K]

Answer:

Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid (also called pyruvate). ... Thus, four ATP molecules are synthesized and two ATP molecules are used during glycolysis, for a net gain of two ATP molecules. hope this answerssss u

7 0
3 years ago
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How many amino acids are found in living organisms? 2 5 10 20
Nezavi [6.7K]

Answer:

20

Explanation:

8 0
3 years ago
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