AP BIOLOGY

Detailed explanation-1: -All living organisms are inter depend on plants because plants take the food from sun by photosynthesis(auto trophs) and make them as food and animal which eat plants and indirectly take the sunlight and glucose (depend on the plant are called herbivores .

Detailed explanation-2: -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: -Heterotrophs are primary consumers which are dependent on the producers, the autotrophs for their food.

Detailed explanation-4: -Answer 3: Most organisms either directly or indirectly use energy from the sun to survive, but not all of them. Plants and some microbes use the energy from the sun to perform photosynthesis. In photosynthesis, light energy is used to combine CO2 in the air with water to make sugars and oxygen.

Detailed explanation-5: -Most producers on the earth depend on sunlight for their energy requirements. Sunlight is the ulimate source of energy for all living organisms.