AP BIOLOGY

Detailed explanation-1: -Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms.

Detailed explanation-2: -Plants make their own food through a process called photosynthesis. Using the energy from the sun, water and carbon dioxide from the atmosphere and nutrients, they chemically make their own food. Since they make or produce their own food they are called producers.

Detailed explanation-3: -Answer and Explanation: A food chain always starts with a producer because some organism has to be able to produce energy from its environment to get the chain started.

Detailed explanation-4: -The first organism or first link in the food chain is a producer. Producers are plants; they can be grasses, fruits, trees, vegetables, or ocean algae and other aquatic plants.

Detailed explanation-5: -The first organism in a food chain is always a plant. An organism that gets its food from other living organisms. This organism cannot make it’s own food.