What is the herbivore in the following food chain: algae → fish → herons?
The step would be the food chain. In this case the big fish is at the top of the food chain and the algae would be at the bottom.
Algae feed small fish which starts the food chain.
food chain in pond: Algae -->Protozoa-->Small Fish --> Big fish
Algae form the main basis of the aquatic food chain.
sharks,fish,algae
fish eat algae and bigger fish like sharks eat the fish
Algae are microscopic organisms that grows in the water. Algae is eaten by fish or krill and other tiny creatures. In a food chain it would be considered a producer because it harnesses the sun's energy to create food that is consumed by other organisms.
If algae is the producer in a food chain of the ocean then corn would be a producer in a food chain on land. Any green plant is a producer.
Algae
dinoflagellates
Plants and algae