Climbing at high altitude where oxygen levels are insufficient can lead to
A. respiratory acidosis.
B. respiratory alkalosis.
C. metabolic acidosis.
D. metabolic alkalosis.
B
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The following is a list of several levels of organization that make up the human body.
1. tissue 2. cell 3. organ 4. molecule 5. organism 6. organ system The correct order from the smallest to the largest is A) 6, 4, 5, 2, 3, 1. B) 4, 2, 1, 3, 6, 5. C) 2, 4, 1, 3, 6, 5. D) 4, 2, 1, 6, 3, 5. E) 4, 2, 3, 1, 6, 5.
Deoxygenated blood is carried to the placenta by the
A) umbilical vein. B) umbilical arteries.
A sudden rise of room brightness would cause
A) contraction of the pupillary constrictor muscles. B) contraction of the pupillary dilator muscles. C) conversion of 11-trans to 11-cis retinal. D) an increase in the size of the pupil. E) All of the answers are correct.
Which muscle plantar flexes the foot?
A. tibialis anterior B. soleus C. extensor digitorum longus D. extensor hallicus longus E. fibularis brevis