2n=6 is n =3
2n=8 is n=4
So 4 +3 equals seven=7
<span>Plants, animals, and humans all need </span>shelter<span> to survive. Plants in ... When an area has many different species living in the same habitat, it has a </span>great<span> deal of biodiversity. ... Just about every other plant on earth </span>would<span> wilt and die if it were exposed to the ... The ground of the </span>rainforest<span> is called the </span>forest<span> floor.</span>
I would pick A hope it’s correct
Bi means to cut into two parts.
Hope This Helps!