Answer:
B. Chromosomes
Explanation:
This process is required to produce egg and sperm cells.
Answer:
When you eat, food passes from the throat to the stomach through the esophagus. A ring of muscle fibers in the lower esophagus prevents swallowed food from moving back up. These muscle fibers are called the lower esophageal sphincter
Explanation:
Answer:
I think that answer is A
Explanation:
how long ago did the organism lived
<span>Tsetse flies feed by piercing the skin with their mouthparts and: Sucking the blood of animals and humans. </span>
