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garik1379 [7]
2 years ago
14

What is the main force of evolution?

Biology
1 answer:
Yanka [14]2 years ago
3 0

Answer:

We have to evolve or we will just slowly die off.

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Que es la variación de rasgos
WINSTONCH [101]

Answer:

Cada gen puede tener varias variantes, llamadas alelos, que codifican diferentes variantes del rasgo en cuestión. ... Los genes residen en los cromosomas de una célula, cada uno de los cuales contiene muchos genes. Cada célula de cualquier organismo individual contiene el mismo conjunto de cromosomas.

Explanation:

6 0
3 years ago
Why do Plants cells have cell walls and Animal cells do not?​
zimovet [89]

Answer:

Plants need a rigid structure. Animal cells have flexible cell membranes. So animal cells can have a variety of shapes, but plant cells can not, they have to take the shape of their cell walls. Both plant and animal cells are eukaryotic, so they contain membrane-bound organelles like the nucleus and mitochondria.

4 0
2 years ago
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Use Darwin's theory of Natural Selection to explain the process by which the four-legged land animal, A, may have evolved, over
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Answer:

Due to environmental conditions.

Explanation:

With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.

5 0
3 years ago
About how many times thicker is a
ANEK [815]

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I think it's up to 100 times

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What are the choices, cousin!?
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