Students observed two animal cells under a microscope. They counted 500 mitochondria in cell A and 1500 mitochondria in cell B. *State with reason, which of the cells was a sperm cell

American college students invented football by combining what two sports?

Which action encourages homophobia? tolerating others' opinions welcoming someone into a group respecting others' differences accepting inappropriate terminology

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells