An object's average speed is found by dividing the total distance the object travels by the total А
mass of the object.
B
acceleration of the object.
specific gravity of the object.
D
time it takes to move that distance.

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.