The event called the Cambrian Explosion resulted in an abrupt increase in
A. volcanic activity.
B. rate of continental drift.
C. algal diversity.
D. diversity of major animal groups.
E. the number and size of glaciers.
Answer: D
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Herpesviruses can cause all of the following diseases in humans EXCEPT
A) cancer. B) chicken pox. C) cold sores. D) spongiform encephalopathy.
The ____ would most likely contain blood that needs to be cleansed
a. renal vein b. renal artery c. nephron d. kidney e. bladder
Why are most infants with phenylketonuria usually healthy at birth?
a. The defect causing the condition has usually been repaired by that time. b. The mother breaks down phenylalanine for both herself and her fetus. c. The infant can produce sufficient quantities of the enzymes needed by birth. d. Phenylalanine can be completely excreted in infants. e. Phenylalanine is completely metabolized in infants
Which of the following processes is most associated with bacterial resistance acquired through plasmid transfer?
a. Transformation b. Replication c. Transduction d. Binary fission e. Conjugation