Answer:
Explanation:
You need the respiratory system when you kick a ball because you need to be able to breath but if you are playing soccer this benefits the cardiovascular fitness level. Cardiovascular fitness is, according to the American Sports Medicine Institute, the efficiency of your heart, lungs and vascular system to deliver oxygen to your muscles to maintain activity.
Answer:
sorry. I can't not answer this question now cause i already submitted it. i did not mean to.
Introduced species can harm our planet because in some regions of the world we are not prepared for their type of species, which can all in all cause damage.
D - an increase in tree cover in the tundra.
Answer:
it is a symbiotic relationship
Explanation:
Clownfish live in a "symbiotic" relationship with certain anemones. This means they benefit from living with the sea anemone, and the sea anemone benefits from the presence of the clownfish. They are the only fish that are able to live in sea anemones and not get stung by their tentacles.
