Humans have pores in their skin to sweat and cool off the body. plants have similar structures called
pores
tendrils
stomata
receptacles

Why should the united state be concerned about air pollution in china?

How does the study of genetic disorders such as pku biologists understand normal alleles?

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.