Late fam can u answer this, it’s lots of points ;) (34 points

lungs

Explanation:

mushroom have eukaryotic cells

amoeba have  eukaryotic cells

lungs dont have eukaryotic cells

nucleus have  eukaryotic cells

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.