3. The nutrients used to build and repair cells are called .

Protein is a nutrient used to make and repair our body cells (like blood and muscle cells).

Explanation:

so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.

obviously, the latter.