What is the name for the muscular contractions that push food through the digestive system 1. Villi
2. Peristalasis
3. Elimination
4. Pepsin

What would happen if the krill were removed from the food web

What controls activities within a eukaryotic cell?

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells