Which bacterium is capable of withstanding doses of radiation that are several times higher than human cells can tolerate?
A) Staphylococcus aureus
B) Saccharomyces cerevisiae
C) Deinococcus radiodurans
D) Escherichia coli
E) Conus magus
C
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Petals
A. protect the developing flower. B. enclose and protect the ovule. C. produce pollen. D. are part of the gametophyte. E. attract pollinators.
Is it possible for a man with type O blood to be the father of a child with type A blood?
A. No B. Yes
The enzyme reverse transcriptase
A) synthesizes DNA to repair gaps in a DNA strand. B) synthesizes DNA from an RNA template. C) synthesizes RNA from an RNA template. D) synthesizes RNA from a DNA template. E) can synthesize DNA or RNA from an RNA template.
After a cookie has been eaten and digested, sugar molecules enter bloodstream by process of
a. active transport b. diffusion c. excretion d. cellular respiration