A planula is a
a. sedentary, attached, tree-shaped form found in
corals.
b. swimming larval form with an outer ciliated
epidermis.
c. kind of parasitic worm.
d. fleshy lobe that extends laterally from the body
wall of a marine worm.
e. rasplike tongue.
Answer: b
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West Nile virus has been detected in ________ states of the United.States.
A. 50 B. 10 C. 25 D. 47
Which of the following is NOT a major process of
microevolution? a. mutation b. divergence c. genetic drift d. gene flow e. natural selection
The translocation seen in the Philadelphia chromosome in myelogenous leukemia represents ____
a. a chromosomal aberration that is secondary to the cancer b. a chromosomal aberration that is caused by the development of cancer c. a proto-oncogene that has been deleted from chromosome 6 and inserted into chromosome 7 d. a specific chromosomal aberration accompanying a specific cancer e. the evidence of exposure to chemical carcinogens
A daily intake of 1,200 milligrams of this mineral should prevent osteoporosis.
A. phosphorus B. iron C. calcium D. vitamin A