The difference between an overt and a covert bioterrorism event is that a(n):
a. covert event is one that is carried out against undercover agents.
b. covert event is announced, and an overt event is not announced.
c. overt event is announced, and a covert event is not announced.
d. overt event is one that is carried out in the air.
C
Biocrime is either overt (announced) or covert (unannounced). The letters sent to Senators Daschle and Leahy in 2001 are examples of an overt event; a note inside each envelope an-nounced that the individual opening it had been exposed to Bacillus anthracis spores. The pack-age sent to the journalist at American Media Inc. is an example of a covert event; an environ-mental investigation of his office uncovered the anthrax spores after his death and the illness of a coworker.
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A. The histone complex B. Chromatin C. The kinetochore D. Cohesin
The neural control centers for the heart ____
a. are primarily stimulatory b. are found in the spinal cord and brain c. influence only heart rate
d. stimulate heart rate and decrease contraction strength e. play a minor role in cardiovascular feedback
ENSO refers to a periodic warming of surface ocean waters
____________________ Indicate whether the statement is true or false.
In pines, the female gametophyte contains _____, each of which contains a(n) _____.
a) archegonia ... egg b) antheridia ... egg c) antheridia ... sperm cell d) archegonia ... sperm cell e) microsporangia ... egg cell