AP BIOLOGY

Detailed explanation-1: -A food chain is a series of relationships between members of an ecosystem so that energy can be transferred between them. Energy flow in an ecosystem starts from the sun which provides all the energy needed for life.

Detailed explanation-2: -Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Detailed explanation-3: -The food chain describes who eats whom in the wild. Every living thing-from one-celled algae to giant blue whales-needs food to survive. Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem. For example, grass produces its own food from sunlight. A rabbit eats the grass.

Detailed explanation-4: -All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Detailed explanation-5: -A food chain represents a simple linear pathway through which energy and materials are transferred from one species to another in an ecosystem. In general, food chains show how energy and materials flow from producers to consumers.