In a science experiment, you studied how the amount of sunlight affects the height of 5 sunflower plants. you recorded your observations in the data table below.

what is the dependent variable in this experiment?
question 4 options:

soil type

hours of sunlight

amount of water

total growth of the plants

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?