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

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

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

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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).

Biology & Microbiology