1) In the aquatic ecosystem shown, which organism would be considered a secondary consumer? A) pike B) perch C) mosquito larvae D) dragonfly larvae

Out of the given options, the secondary consumer is perch.

Explanation:

The four given options are arranged in a food chain as follows

mosquito larvae>>Dragonfly larvae>>Perch>>Pike

Here Dragonfly larvae is the primary consumer, perch is the secondary consumer whereas Pike is the tertiary consumer.

D. dragonfly larvae

Explanation:

For example;

This is a simple food chain;

algae ⇒ mosquito larvae ⇒dragon fly larvae ⇒perch

Algae are the producers in the food chain above.

Mosquito larvae are the primary consumer in the above food chain.

Dragonfly larvae is the secondary consumer in the food chain which feed on the primary consumer.

The final level is perch, which is a carnivore.