The cranial capacity for the species Australopithecus afarensis was close to:
A) 900 cubic centimeters. B) 2,000 cubic centimeters.
C) 1,400 cubic centimeters. D) 450 cubic centimeters.
Answer: D
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When tissues organize they form:a
an organ. b. a nucleus. c. an atom. d. a cell. e. an enzyme
A loss of cdc2 function results in the premature entry into mitosis.
a. true b. false
A woman struggling with a bacterial illness is prescribed a month's supply of a potent antibiotic. She takes the antibiotic for about two weeks and feels much better. Should she save the remaining two-week supply, or should she continue taking the drug?
A) She should save the drug for later, because if she keeps taking it the bacteria will evolve resistance. B) She should save the drug for use the next time the illness strikes. C) She should save the drug because antibiotics are in short supply, and she may need it to defend herself against a bioterrorism incident. D) She should continue taking the drug until her immune system can completely eliminate the infection. Otherwise, some bacteria may remain in her system, and they will probably be resistant.
Which potential biological select agent currently has no natural source?
A. anthrax B. arenaviruses C. tularemia D. epidemic typhus E. smallpox