Here are the answers:
1. Adaptation is the change in living organisms that allow them to live successfully in an environment. There are several types of adaptations:
- Adaptations to move: The extremities change form according to the environment in which the animal lives: fins or paws in form of oars in the aquatic animals, wings for the air environment, running paws and extremities to climb in the terrestrial environment, etc
- Adaptations to feed: Plants have roots and animals have different types of dentures or beaks according to their feeding.
- Adaptations to breathe: According to the animal type and the environment where they live, animals have different organs to breathe: lungs for the air environment, gills