A. They supply cells with nitrogen.
Hope this helps!
Answer:
B
Explanation:
Heterozygous genotypes are those that have one dominant allele and one recessive allele.
Dominant alleles are represented as capital letters, while recessive alleles are represented as lowercase letters. So, a heterozygote should have one capital letter and one lowercase letter.
Looking at the answer choices, only B fits this, so it's the answer.
Hope this helps!
Answer:
u write n1663r and teachers give u an a automatically
27 proteins in the cell membrane that assists with facilitated diffusion are known as carrier proteins, or transport proteins, since they carry materials across the cell membrane.
hope this helps...
brainliest..?
Binary fission occurs in single-celled organisms only and mitosis is just one cell dividing into two (eukaroytic cells)