AP BIOLOGY

Detailed explanation-1: -Secondary consumers eat herbivores. They are at the third trophic level. In a desert ecosystem, a secondary consumer may be a snake that eats a mouse.

Detailed explanation-2: -Mouse occupies the trophic level of secondary consumers, while owl is the tertiary consumer.

Detailed explanation-3: -The organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them. The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers.

Detailed explanation-4: -Secondary consumers are largely comprised of carnivores that feed on the primary consumers or herbivores. Other members of this group are omnivores that not only feed on primary consumers but also on producers or autotrophs. An example is a fox eating rabbit.

Detailed explanation-5: -Grass produces its own food through photosynthesis. It is a primary producer at the bottom of the food chain. Primary producers are the 1st trophic level. Grasshoppers are herbivores that eat grass.