The correct answer is C. Artiodactyls
They've been around more than the others and have existed for some 55 million years.
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.
Answer: It is exchanging genetic material between two paired chromosomes
Explanation:
1000 units of information
Answer:
Please see the attachment for full answer
Explanation:
See the attachment
