Question

In a population of short, ground-dwelling animals, some offspring were produced that were approximately 1 cm taller than others in the population. This group was able to reach slightly higher vegetation than the rest of the population. When these animals grew up, they were able to produce more offspring than other animals in the population. This pattern, where the tallest animals were more likely to survive and reproduce, continued over several generations. Eventually, after many generations, all members of the population were at least 20 cm taller than animals of the original population had been. What does this illustrate?

A. Biological change does not apply to ground-dwelling animals. B. Slight differences between parents and offspring can eventually result in future generations that are very different from their ancestors. C. Only major differences between parents and offspring can result in future generations that are very different from their ancestors. D. Ground-dwelling animals would survive better if they evolve to be shorter.

Answer 1

B. Slight differences between parents and offspring can eventually result in future generations that are very different from their ancestors.

Step-by-step explanation:

Seemingly minor mutations that increase a species' ability to survive will likely be spread over many generations, and can eventually cause major differences between generations.