Ameadow food chain is shown. what is the role of the mouse?
a. primary consumer
b. secondary consumer
c. producer
d. decomposer

The correct answer is option B. "secondary consumer".

Explanation:

In food chains, secondary consumers are organisms that fed from primary consumers, who respectively fed from producers. In this case the role of the mouse in the food chain is of a secondary consumer, since the mouse fed from grasshoppers that are primary consumers that fed from grass, which are producers.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.