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Sladkaya [172]
3 years ago
5

How does gradualism explain the evolution of different species?

Biology
1 answer:
lana66690 [7]3 years ago
7 0

Answer: New species appear as a result of big changes over a short period of time

Explanation:

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On what characteristic of an organism does natural selection exert pressure?
Pie

Answer: option D.

Phenotype

Explanation:

Theory of natural selection shows that different organism survive, adapt and reproduce in their environment due to their different phenotypic variation. The phenotypic variation exist among individual organisms and it is heritable which is transfer from one generation to another.

Phenotype are traits or physical characteristics or observable characteristics of organism e.g organisms appearance, behavior e.t.c.

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3 years ago
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An unsaturated fat has the maximum number of hydrogens attached to the carbon backbone.
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Opening and closing of the heart valves is caused by
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Answer:

The pressure differences on either side of the valve.

Explanation:

The heart valves open and close passively because of pressure differences on either side of the valve. When pressure is greater behind the valve, the leaflets are blown open and the blood flows through the valve. However, when pressure is greater in front of the valve, the leaflets snap shut and blood flow is stopped.

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6 0
3 years ago
Using its long tail and long hind legs, the Ord's kangaroo rat can jump 2 m in the air as it hops away from predators, such as s
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Answer and Explanation:

a. According to Lamarck, the origin of the long hind legs of the Ord's kangaroo rat is acquired due to extensive use of the muscle legs to jump. Such physical characteristics could be transmitted to future generations. This theory is called Neo-Lamarckism.

b. Darwin, on the other hand, theorized that in a population of Ord's kangaroo rat, there was an individual whose characteristics, long tail and hind legs, had more chances of escaping its predator and, consequently, could survive and reproduce. This theory is called Darwinism.

5 0
2 years ago
Please help me with this.
Andreyy89

Answer:

natural selection is the answer

7 0
2 years ago
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