Hormonal and neural changes during pregnancy function to facilitate diffusion of gases across the placenta. One way this occurs is by ________ respiration rate, thereby ________ CO2 levels in the blood.
A. increasing; lowering
B. increasing; raising
C. decreasing; lowering
D. decreasing; raising
Answer: A
Anatomy & Physiology
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Platelets are formed elements
Indicate whether this statement is true or false.
Anatomy & Physiology
In the stomach:
a. pepsin converts hydrochloric acid to pepsinogen b. pepsin converts pepsinogen to hydrochloric acid c. hydrochloric acid converts pepsinogen to pepsin d. hydrochloric acid converts pepsin to pepsinogen
Anatomy & Physiology
Night blindness is a result of a deficiency of what nutrient?
a. glutamate b. vitamin E c. vitamin B6 d. vitamin A e. zinc
Anatomy & Physiology
Small signals at a synapse that can add together are called
A. graded potentials. B. kinetic potentials. C. action potentials. D. receptor potentials. E. resting potentials.
Anatomy & Physiology