Describe two physical activities of moderate or vigorous intensity that can be performed by adults at an average fitness level. explain why you chose these activities for adults, and briefly describe the fitness benefits of each activity.

Going for bike rides and swimming can be performed by adults at an average fitness level. I chose these because there are different skill levels for each of these, and can easily be achieved by most adults. The benefits would be the loss of fat, strengthening the legs, and gaining muscle. 

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Explanation: I can be accomplished easily.

answer: proteins

explanation: complement is   system of circulate in the blood in a inactive form

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