OBJECTIVE FORESTRY

Detailed explanation-1: -Explanation for correct option: The herbivores (plant-eating organisms) are those organisms that feed upon producers(autotrophs). A few examples of primary consumers are rabbits, deer, zooplankton, cattle, etc.

Detailed explanation-2: -Primary consumers are herbivores that consume plants. They form the second trophical level in an ecosystem. Deers, giraffes, cows, goats, rabbits, horses, and snails are herbivores that feed on plants in a food pyramid.

Detailed explanation-3: -They eat primary producers-plants or algae-and nothing else. For example, a grasshopper living in the Everglades is a primary consumer. Some other examples of primary consumers are white-tailed deer that forage on prairie grasses, and zooplankton that eat microscopic algae in the water.