Several glands add fluids to the sperm to form semen as it passes through the vas deferens.

Maintaining a healthy weight allows the respiratory system to work more effectively because a. oxygen is being delivered more adequately. b. the heart does not have to pump as forcefully. c. the capillaries are constricted. d. the lung capacity allows for small amounts of air.

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The only part of the body that should touch the ball when setting in volleyball