LIFE SCIENCE

Detailed explanation-1: -Because autotrophs do not consume other organisms, they are the first trophic level. Autotrophs are eaten by herbivores, organisms that consume plants. Herbivores are the second trophic level. Carnivores, creatures that eat meat, and omnivores, creatures that eat all types of organisms, are the third trophic level.

Detailed explanation-2: -Photosynthetic autotrophs capture light energy from the sun and absorb carbon dioxide and water from their environment.

Detailed explanation-3: -The first organisms used inorganic chemicals as food to generate energy. These were the first autotrophic organisms known as chemoautotrophs. Plants use sun’s energy for photosynthesis and are called photoautotrophs.