In an experiment for science class, six pepper plants grown in individual containers are separated into two groups. one group is placed in a room that gets sunlight, and the other group is placed in a dark room. all of the plants receive the same amount of water daily. after three weeks, the plants are observed. why were all the plants in the experiment pepper plants

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.