three
3 (apex)
It depends. A food chain could be fairly long with about four or five steps in it, or a food chain could have just two.
What is the herbivore in the following food chain: algae → fish → herons?
Mercury levels would be highest at the top of the food chain due to biomagnification.
Producers, consumers, and decomposers.
food chain
trophic levels.
The tropical rainforest food chain has four levels. The four levels are the primary producers, the primary consumers, secondary consumers and the tertiary consumers.
Calories
The three trophic levels in a food chain are producers (plants), primary consumers (herbivores that eat plants), and secondary consumers (carnivores that eat herbivores).
Study the following food chain: grass → snakes → rabbits → hawks. From this chain, you can correctly assume that each population