Answer:
B. Main ingredient of protein
Explanation:
Nitrogen is the main element of protein and enzymes in other words, protein and enzymes cannot be formed without nitrogen. This nitrogen is taken by plants from the soil after fixation. Atmospheric nitrogen fixes by nitrogen fixing bacteria and converts it into nitrates. While human take nitrogen by eating animals and plants.
The answer for this question is PRODUCERS
<span>The right answer is A. yes, the alleles for Beak X could remain in the population as a recessive gene.</span>
