Most of the normal microbiota of the digestive system are found in the
A) mouth.
B) stomach.
C) stomach and small intestine.
D) small intestine and large intestine.
E) accessory structures.
D
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Which of the following is not one of the four tissue types?
A. Squamal B. Nervous C. Connective D. Epithelial E. Muscle
Most of the normal variation in human height is due to the influence of
A) ADH. B) epinephrine and norepinephrine. C) growth hormone. D) testosterone. E) thyroxine.
Which is NOT a correct association of brain structures and functions?
Select one: a. midbrain—reflex centers for visual, auditory, and tactile responses b. cerebellum—coordinates smooth and coordinated motions c. cerebrum—higher thought processes, including learning, memory, and speech d. pons—regulates breathing rate e. thalamus—regulates heartbeat and blood pressure
The type of reproductive barrier that occurs when reproductive structures of different species are physically incompatible is referred to as ____
Fill in the blank(s) with the appropriate word(s).