AP BIOLOGY

Detailed explanation-1: -The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and with nonliving things for survival. For example, a tree depends on sunlight for energy to make its own food and a snail depends on the tree for food.

Detailed explanation-2: -Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms. Abiotic factors include rocks, temperature, and humidity. Every factor in an ecosystem depends on every other factor, either directly or indirectly.

Detailed explanation-3: -For example, a bird needs food (from living or once-living sources), water, shelter and a breeding place. Green plants are producers. They use inorganic materials (carbon dioxide from the air, minerals and water from the soil) and energy from the sun to produce complex, organic materials for their own needs.

Detailed explanation-4: -Final answer: The study of the Interaction between living organisms and their environment is called ecology.