Question

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

Explanation:

Step1: Analyze food - chain relationship

In the food - chain diatom → midge larva → European grayling → pike, midge larva is the prey of European grayling.

Step2: Consider impact of prey population change

When the population of midge larvae (prey) increases, European graylings (predators) have more food available.

Step3: Determine survival and population effect

With more food, European graylings are more likely to survive and reproduce, so their population will likely increase.

Answer:

more; increase