Question

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

Explanation:

In a food - chain, pike rely on European graylings as a food source. If the number of European graylings decreases, pike have less food, making it harder for them to survive and reproduce, thus reducing their population.

Answer:

decrease