Darwin's experiments are just one way to study phototropism. a student wants to investigate the
effects of phototropism in bean plants. she places a light source directly above one plant, at a forty‐five
degree angle to another, and at a ninety‐degree angle from the third.
a. what is her independent variable?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.