Which of the following is a modified fatty acid?
a. prostaglandin
b. cyclic AMP
c. thyroid hormone
d. epinephrine
e. melatonin
A
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What is the proper sequence in the flow of air in
mammals? a. nasal cavities, larynx, pharynx, bronchi, trachea b. nasal cavities, pharynx, bronchi, larynx, trachea c. nasal cavities, pharynx, larynx, trachea, bronchi d. nasal cavities, larynx, pharynx, trachea, bronchi e. nasal cavities, bronchi, larynx, trachea, pharynx
If a plant is placed on its side, cells on the lower side of the stem will respond to gravity and elongate, making the stem turn so that it continues to grow downward.
Answer the following statement true (T) or false (F)
The largest viruses known are the ________.
A. adenoviruses B. mimiviruses C. hepadnaviruses D. herpesviruses