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: answer is.......
Explanation: Strands are complementary to each other, its mean that if one strand contain Adenine, Gunine and cytosine so on the other strand there will Thymine bond with Adenine, Cytosine with Gunanine and Gunanine with Cytosine. DNA molecules have an antiparallel structure - that is, the two strands of the helix run in ... Replication relies on complementary base pairing, that is the principle explained ... DNA replication occurs through the help of several enzymes.
B.
<span>A decrease in plant life would cause carbon dioxide levels to increase and oxygen levels to decrease.</span>