The answer is primary. That means the answer is a.
Hope this helped☺☺
Answer:
Each base pair is formed from two complementary nucleotides (purine with pyrimidine) bound together by hydrogen bonds. The base pairs in DNA are adenine with thymine and cytosine with guanine.
Explanation:
The answer is serous membranes.
Hope it helped!
Answer: It is a food chain
Explanation: A series of steps including species consuming another in a direct chain is defined as a food chain
Answer:
digestion; mouth, esophagas, stomach, small intestine, large intestine
Explanation:
www.niddk.gov/digestion-system-how-it-works
I do not know anything about he digestive system since I am only in middle school, learning about earth science, so I looked it up ad this website came up.