Which type of consumers are herbivores that eat green plants?

Herbivores that eat green plants are classified as primary consumers in ecological terms. Primary consumers are organisms that primarily consume producers, which are typically plants or algae that can photosynthesize. Since herbivores feed directly on these green plants, they occupy the second trophic level in an ecosystem, playing a crucial role in energy transfer from producers to higher trophic levels, such as carnivores or omnivores that may eat both plants and animals. This distinction highlights the importance of primary consumers in maintaining the balance of an ecosystem by controlling plant populations and providing energy to higher-level consumers.