Which is not a distinct part of the flagella?
A. Tail
B. Hook
C. Filament
D. Basal body
Answer: A. Tail
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The 5' UTR and 3' UTR of mRNA: (Select all correct choices)
A. may bind with proteins that transport the mRNA to a specific region in the cell for translation. B. may bind with proteins that are localized to one place in the cell and that prevent translation. C. may bind with proteins that determine how rapidly the mRNA is translated.
After the secondary stain has been added, gram-positive organisms are stained ________ and gram-negative organisms are stained ________.
A. pink; pink B. purple; pink C. purple; purple D. purple; colorless
The antidiuretic hormone
a. promotes processes that lead to an increase in the volume of urine. b. promotes processes that lead to a decrease in the volume of urine. c. acts on the proximal tubules of nephrons in the kidney. d. is produced by the adrenal cortex. e. is produced by the anterior pituitary gland.
Which receptors are thought to be the most numerous and active in the body?
a. proprioceptors b. nociceptors c. chemoreceptors d. mechanoreceptors e. electroreceptors