The breeds of dogs are all one species, but they have
incredible genetic diversity.
Who first realized that
variation mattered, even
though he didn't know the
exact mechanism?
A. Lamarck
B. Aristotle
C Darwin
D. Griffith

C Darwin

Explanation:

Charles Darwin, the father of evolution theorised that within any population, there exists variation in traits which help the animals adapt to their environment and help them survive.

In the same vein, he believed that the breeds of dogs are all one species, but they have incredible genetic diversity.

Therefore, Charles Darwin first realized that variation mattered, even though he didn't know the exact mechanism.

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explanation:

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