When an organism is well adapted to its environment, this means that the organism is easily able to:
- withstand the climate of its habitat/environment
- regulate its bodily temperature in aforementioned climate
- use its abilities (such as eyesight, a keen sense of smell, etc.) to find nourishment or hunt prey
- safely hide, camouflage into the environment, or ward off possible attackers
Good luck on your assignment, and I hope my answer suffices.