Glyptodons are fossil forms that resemble ____.
A. ostriches
B. armadillos
C. kangaroos
D. turtles
E. sloths
Answer: B
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Enveloped viruses ____
a. generally lyse host cells as they are released b. synthesize envelope lipids as they replicate within the host cell c. acquire their envelope as they bud from the host cell d. acquire their envelope as they enter the host cell e. always contain DNA genomes
Which of the following could NOT be an RNA
transcript?
a. GGCUAG b. CCGATC c. UUAACC d. ACGGAU e. GAGCAU
Which statement is true for most steroid hormones?
a. They dissolve readily in the blood. b. They have no trouble entering their target cells. c. They find and react with surface receptor molecules. d. They cannot easily enter a target cell. e. They developed from amino acids.
Identify the bacterium listed below which does NOT form endospores.
A) Bacillus anthracis B) Clostridium perfringens C) Clostridium botulinum D) Staphylococcus aureus