In the human body, the cardiovascular system works with the respiratory system by: Producing red blood cells
Transporting oxygen to organs
Providing nutrients to muscles
Controlling the movement of the lungs

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

c is the answer. hope this