Franklin's assignment at Cambridge was to investigate the structure of ____
a. proteins
b. ultraviolet radiation
c. DNA
d. embryonic fluid
e. lipids
ANSWER: c
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Which of the following does not occur during the first trimester of pregnancy?
A. All of these events occur during the first trimester. B. cleavage C. gastrulation D. organogenesis E. sex determination
A woman visits her doctor's office complaining of pattern baldness. Her mother and father do not have pattern baldness, but her brother does. The doctor is concerned that she may have the serious condition of __, and he immediately orders blood tests to check her ________ levels.
A. tumor of the adrenal gland, 5-dihydrotestosterone B. tumor of the reproductive system, testosterone C. skin cancer, 2,5 alpha-reductase D. tumor of the adrenal gland, estradiol E. tumor of the reproductive system, 5-dihydrotestosterone
. By the __________ theory, transpiration pulls water upward by creating a continuous negative pressure (or tension)
inside xylem. Fill in the blank(s) with the appropriate word(s).
If a person were experiencing lack of understanding of emotional situations or seemed unable to recognize displays of emotion by other individuals, the likely area of brain trauma would be the
A. pons. B. thalamus. C. amygdala. D. reticular formation. E. hippocampus.