大象传媒

The spines of a cactus are much better than flat leaves at preventing water being lost from the plant. The spines are also good protection from animals that might want to eat them.

Adaptation

Living things are adapted to their habitats. This means that they have special features that help them to survive.

An African elephant, for example, lives in a hot habitat and has very large ears that it flaps to keep cool.

A polar bear, on the other hand, lives in a cold habitat and has thick fur to keep warm.

It鈥檚 not just animals that are adapted to their environment, plants are too. A cactus is well adapted for survival in the desert. They have long roots to collect water from a large area and a stem that can store water for a long period of time.

The animals and plants in one habitat are suited to live there and may not be able to survive in other habitats. When a habitat changes, the animals and plants that live there are affected.

The spines of a cactus are much better than flat leaves at preventing water being lost from the plant. The spines are also good protection from animals that might want to eat them.

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