In a study examining the growth of coral in a portion of the Great Barrier Reef, which conclusion
concerning alterations in the coral colonies is the most accurate?
a. Changes in the colony are due to external factors only.
b. Changes in the colony are due to internal factors only.
c. Changes in the colony are due to both external and internal factors.
d. Changes in the colony are solely due to man's interference.
e. The study was not able to observe any changes in the coral colony over time.
C
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The discovery of antibiotics and other important chemicals led to the field of
A) industrial microbiology. B) agricultural microbiology. C) marine microbiology. D) aquatic microbiology.
The identity of flower organs is specified by the spatial expression of three classes of homeotic genes
A. true B. false
Transgenic goats are now able to produce
proteins used to treat
a. cystic fibrosis. b. heart attacks. c. blood clotting disorders. d. nerve gas exposure. e. all of these
Which organism is a flagellated protozoan that has a flat ventral side and is able to attach firmly to a human's intestinal wall?
a) Giardia lamblia b) Entamoeba histolytica c) Cyclospora cayetanensis d) Cryptosporidium hominis