If webbed feet help aquatic animals catch prey, then what do webbed feet help aquatic animals do? Answer choices: - rapid expansion - root growth - Catch prey - support - Regrows it - squeeze - Relieve pain - improve
Catch prey

If mammals conserve energy with their hair or fur, then what kind of animals conserve energy with their hair or fur? Answer choices: - fur - bears - mammals - sweating - frogs - cactus - goats - humans
mammals

If mutations are essential for evolution happen, then mutations are what to evolution? Answer choices: - Plants growth - essential - optional - competition - dangerous - non essential - voluntary - allow growth
essential