How is the process of carbon fixation in cam plants different from the process in c3 and c4 plants? a. cam plants require a larger exchange of gases in the atmosphere than c3 and c4 plants. b. cam plants are better adapted for moist, low light areas than c3 and c4 plants. c. cam plants conserve water by allowing transpiration to occur at night rather than the day like it does with c3 and c4 plants. d. all of the above

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.

Identify the structures ! 20 points

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed