Question

Many different varieties of grove snails exist with differing shell colors and stripes. Research suggests that different genetic combinations result in different physical appearances. Which of the following is a likely positive result of these genetic variations?

A. They decrease the number of predators of the species.
B. They decrease the amount of food eaten by the species.
C. They increase the ability of the species to hide from predators.
D. They increase the species' ability to survive seasonal climate changes

Answer 1

Genetic variations in grove snails' shell colors and patterns can increase their ability to hide from predators, serving as a form of camouflage. This adaptation increases their survival rate in native regions where their appearance blends into the environment.

Step-by-step explanation:

The main answer to the question is that genetic variations in grove snails, resulting in different shell colors and stripes, are likely to increase the ability of the species to hide from predators. This is a form of camouflage which is a crucial survival adaptation. The hypothesis is that different genetic combinations that affect the snail's appearance give it an advantage in blending in with its environment, thereby reducing the risk of predation.

For example, mottled snails are able to hide more effectively in regions where a mottled appearance blends with the surroundings, whereas solid snails are less noticeable in regions that favor a solid-colored camouflage. The survival rate in research has shown to be higher for snails in their native region where their shell coloration provided them with the best camouflage. In contrast, snails that stand out more in a non-native region are preyed upon more easily. This genetic variation ultimately helps maintain the species during environmental changes and predation pressures.