Pretty sure its c hope this helps
Antibodies, White blood cells, complement system, lymphatic system, spleen, thymus, the bone marrow.
Answer:
Explanation:
The four nitrogenous bases are A, T, C, and G. They stand for adenine, thymine, cytosine, and guanine. The four different bases pair together in a way known as complementary pairing. Adenine always pairs with thymine, and cytosine always pairs with guanine.
Answer: disconformities
Explanation: disconformities are usually erosional contacts that are parallel to the bedding planes of the upper and lower units. I hope this helps