Which is the definition of a hurricane?

a.
a strong windstorm with driving rain that originates at sea.

b.
a sudden and dangerous drop in body temperature.

c.
a whirling, funnel-shaped windstorm that drops from the sky to the ground.

d.
a very heavy snowstorm with winds of up to 45 miles per hour.

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.