Rod-shaped bacteria such as Escherichia coli are called ________ based on the shape of the cells
A) bacilli
B) cocci
C) gram positive
D) thermophiles
E) anaerobes
A
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False ribs are also known as
A) vertebral ribs. B) vertebrochondral ribs. C) vertebrosternal ribs. D) floating ribs. E) both vertebrochondral ribs and floating ribs.
Stem cells are located in _____ and give rise to ____.
Fill in the blank(s) with the appropriate word(s).
How is reverse transcriptase used to clone genes?
a. Reverse transcriptase is used to make a cDNA copy of an mRNA strand. b. Reverse transcriptase is used to make a cloned DNA copy of a plasmid DNA molecule. c. Reverse transcriptase is necessary to read the information contained on the cDNA molecule. d. Reverse transcriptase transcribes RNA from cDNA in reverse order. e. Reverse transcriptase transcribes cDNA into RNA without transcription of introns.
During thermoregulation, how does an endotherm respond to a high body temperature?
A) Blood vessels near the skin dilate. B) Blood vessels near the skin constrict. C) The brain shuts down to prevent damage. D) Blood glucose levels increase to stimulate metabolism.