Question

this food chain shows organisms in a freshwater ecosystem.
diatom image midge larva image european grayling image pike image
use the food chain to complete the text below.
if the population of midge larvae increases, european graylings will be dropdown likely to survive and produce offspring. so, the population of european graylings will likely dropdown.

Explanation:

Step1: Analyze the food chain

The food chain is diatom → midge larva → European grayling → pike. So midge larva is the food source for European grayling.

Step2: Determine the effect of midge larva population increase

If the population of midge larvae (food for European grayling) increases, European graylings will have more food, so they will be more likely to survive and produce offspring.

Step3: Determine the effect on European grayling population

With more survival and reproduction, the population of European graylings will likely increase.

Answer:

First blank: more
Second blank: increase