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.

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

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