Which food source’s scarcity caused the Yellowstone National Park beaver population to decrease? fish
grass
otter
willow

i think it is dna, i'm not totally sure but i think it might be.

-hails tea

explanation:

-t poses

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )