NEET BIOLOGY

Detailed explanation-1: -At the base of the pyramid are the producers, who use photosynthesis or chemosynthesis to make their own food. Herbivores or primary consumers, make up the second level.

Detailed explanation-2: -Plants and algae, which use energy from the sun to produce all their food, sit at the bottom of the food chain, with a trophic level of 1. Right above them are herbivores, such as rabbits, cows and deer, which have a trophic level of 2. Next come the omnivores that eat a mixture of plants and herbivores.

Detailed explanation-3: -Answer and Explanation: The bottom of the food chain is occupied by the primary producers. These are organisms which can use energy from the sun to drive the production of organic compounds using carbon dioxide and water in a process called photosynthesis. An example of a primary producer is grass.

Detailed explanation-4: -The very bottom of the food chain is the soil. The soil contains important nutrients that plants need to grow. Moving up to the next level, there are plants that grow in the soil.