Which of the following is responsible for homeostasis on a cellular level? a. pituitary gland b. hypothalamus c. cell membrane d. nucleus

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Which structure in the cardiovascular system connect arteries to veins?

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred