NEET BIOLOGY

Detailed explanation-1: -First Trophic Level: Autotrophs The first level consists of green algae and plants (the producers), also known as autotrophs. They utilize solar energy through photosynthesis and don’t depend upon other animals for fulfilling their food requirement. Autotrophs are consumed by heterotrophs.

Detailed explanation-2: -The first and lowest level contains the producers, green plants. The plants or their products are consumed by the second-level organisms-the herbivores, or plant eaters. At the third level, primary carnivores, or meat eaters, eat the herbivores; and at the fourth level, secondary carnivores eat the primary carnivores.

Detailed explanation-3: -Algae are primary producers. This is the lowest trophic level. Algae are capable of converting light energy from the sun into chemical energy in the form of sugars and they are thus carbon fixers who create energy utilizable by the rest of the food chain. The process by which algae produce sugars is photosynthesis.

Detailed explanation-4: -For example, photosynthetic plants make up the primary producer trophic level because they are primary to the food web and they produce their own sugars which then fuels the rest of the food web. Primary consumers, or herbivores, make up the second trophic level, because they consume primary producers.