Explain how the respiratory and the cardiovascular system work together to meet the demands of the working muscle.

The respiratory and cardiovascular system work very closley in order to fulfil the demand of muscle.

When the both systems work togetehr they are called the cardio-respiratory system, which together provides oxygen for the muscle and remove carbon dioxide from the body.

During exercise when muscle require more oxygen for contraction and relaxation, cardio-respiratory systems produces more carbon dioxde as a waste product.

Cariovascular sytem helps to transport the oxygen taken by respiratory system  and work together for proper functining of muscle.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

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