- Plants' and animals' traits help them survive in their environment and prevent them from surviving in other environments.
Example: A polar bear has thick white fur and it can swim. It's thick fur keeps it warm and its color helps it blend in. Its swimming skills help it catch fish. All these traits help it survive in the North Pole.
However, do these traits help it survive in the desert? No! It's too hot in the desert for thick fur; its fur is a different color than the surroundings in the desert; there's no need for swimming in the desert.
- Environment promotes the survival of its plants and animals and would not permit the survival of other plants and animals.
Example: Plants and animals that live in a desert don't need a lot of water and can store some water. Like cacti and camels. If you put a hibiscus in the desert, which needs a lot of water and warm temperature, it won't be able to survive in the desert.