Which parts of the nervous system would send messages from a person’s sore knee to alert him or her to stop running and rest?

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

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b.a light particle

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things