I would say A or C I’m not sure but if I had to choose A or C my best guess would be A
I hope this helps :)
A: several different codons can specify the same amino acid.
<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>
Difficult to change - nutrients! crops won’t grow on soil that has had all of the nutrients used up. example: after growing corn in the same place for 50 years, corn will not grow anymore because all of the nutrients it needs to grow will no longer be in the soil