I think its C. hormones act on muscles and glands only. Because hormones act on cells, tissues, organs etc. So this is incorrect and the rest of them are correct.
Answer:
Codominant alleles or Incomplete dominance.
In codominance, the results are mixed, and both show. Incomplete dominance is when the results blend (red + white flower = pink flower)
Brain injury classified as an injury of the central nervous system.
I think the answer is A) policeman
because one of the cell walls functions is to protect the cell and control what enters and what leaves