Different species of organisms have different habitat requirements. For example, some animals need to live in warm, humid climates, while others need to live in cold, dry climates. Some plants need to live in full sunlight, while others need to live in shade.
Organisms that live in the same habitat often have similar adaptations. For example, many rainforest animals are brightly colored and have large eyes to help them see in the dim light of the forest floor. Many desert plants have long roots to help them reach water that is deep underground.
Habitats are important for organisms because they provide them with the resources they need to survive. If a habitat is destroyed or changed, it can have a negative impact on the organisms that live there.