Athletes need a lot of protein and it is unhealthy for a athlete to become vegetarian Bc they don’t have anything to burn off during the sport
Answer:
Mammals, insects, fish and plants all have different systems of exchanging gas. For mammals we breathe into our lungs, for fish they use gills and insects use spiracles.
Explanation:
hope it kind of helps sorry if it doesn't
These three groups are monotremes, marsupials, and the largest group, placental mammals.
The answer would be C. Tears because the others have shown to be invaders
