Answer:
H and J
Explanation:
F With great diversity comes and increase in species
G with an increase of animals there is an increase in competition not a decrease
H and J both seem right since the more animals the more competitive it is for space and food
You could prevent it by not seeing it as much
A hormone is a regulatory molecule that is secreted into the blood by an endocrine gland
I swear it's the cell membrane.. I'm not sure though