AP BIOLOGY

Detailed explanation-1: -Almost all life on Earth relies on solar energy for food, either directly or indirectly. Producers rely directly on solar energy. They absorb sunlight and convert it into nutrients through a process called photosynthesis. Producers, also called autotrophs, include plants, algae, bacteria, and fungi.

Detailed explanation-2: -3.1 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

Detailed explanation-3: -All of our energy comes from the sun, which is our nearest star. The sun sends out huge amounts of energy through its rays every day. We call this energy solar energy or radiant energy. Without the sun, life on earth would not exist, since our planet would be totally frozen.

Detailed explanation-4: -The primary energy source of life on earth is the sun. The sun plays the important role of keeping the planet warm and is the source of the light energy used in photosynthesis. This energy is converted into organic material by the photosynthetic autotrophic organisms and consumed by other living organisms. Q.

Detailed explanation-5: -Energy is essential to life and all living organisms. The sun, directly or indirectly, is the source of all the energy available on Earth.