★ Cardiorespiratory Endurance Quiz
What is your bad cholesterol called?
A. Low Density Lipoprotein
B. High Density Lipoprotein
Select your answer:
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Circulatory / Respiratory › ViewTwo muscular structures control air pressure inside the lungs. Changes in air pressure cause air to move into and out of the lungs. Inhalation is the result of
A. contraction of the diaphragm and pleural membranes
B. contraction of the diaphragm and intercostal muscles
C. relaxation of the diaphragm and intercostal muscles
D. relaxation of the diaphragm and intercostal muscles
E. none of these
The Human Eye › View
Which part of the eye opens in dark places and closes in bright places?
A. Cornea
B. Retina
C. Pupil
D. Lens