The valve located between the right ventricle and the pulmonary trunk is the
A. aortic semilunar valve.
B. pulmonary semilunar valve.
C. tricuspid valve.
D. mitral valve.
E. bicuspid valve.
B
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Lipoproteins that are primarily sent to skeletal muscles and adipose tissues are called
A) chylomicrons. B) very-low-density lipoproteins. C) micelles. D) low-density lipoproteins. E) high-density lipoproteins.
X-rays can be used to view bones because
A. x-rays react with bone. B. x-rays pass through bone. C. bones are less dense than soft tissue. D. x-rays cannot pass through bone.
What is a condition that results from infection and causes the alveoli to fill with fluid?
A. Emphysema B. Asthma C. Chronic bronchitis D. Pneumonia E. Tuberculosis
Infants have ________ deciduous teeth, whereas adults have ________ permanent teeth.
A. 32; 20 B. 28; 20 C. 20; 32 D. 16; 20 E. 32; 32