Question

when the midge larva eats the diatom, matter moves up the food chain. this matter then becomes food for organisms that are further up the food chain. use the information in the food chain to fill in the blanks below. matter moves to the secondary consumer in this food chain when the eats the. matter reaches the top of the food chain when the eats the european grayling.

Explanation:

Step1: Identify the trophic levels

In a food chain, producers (like diatoms) are at the base. Primary consumers (midge larva) eat producers. Secondary consumers (European grayling) eat primary consumers. Tertiary consumers (pike) are at the top.

Step2: Fill in the blanks

When the European grayling (secondary consumer) eats the midge larva (primary consumer), matter moves to the secondary consumer. When the pike (top - level consumer) eats the European grayling, matter reaches the top of the food chain.

Answer:

Matter moves to the secondary consumer in this food chain when the European grayling eats the midge larva. Matter reaches the top of the food chain when the pike eats the European grayling.