Which of the following is a direct effect of sympathetic activation on kidney function?
A) powerful vasodilation of afferent arterioles
B) increased production of filtrate
C) powerful vasoconstriction of efferent arterioles
D) powerful vasodilation of efferent arterioles
E) decreased glomerular filtration rate
E) decreased glomerular filtration rate
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Alveoli abut against each other, causing them to appear ________ in cross section.
A. stratified B. collapsed C. flattened D. circular E. polygonal
Why is the genetic code described as a triplet code?
A) It is described as a triplet code because 3 ATP molecules are required to produce each protein. B) It is described as a triplet code because a sequence of three nitrogenous bases specifies the identity of a specific amino acid. C) It is described as a triplet code because a minimum of three amino acids are required to produce a functional protein. D) It is described as a triplet code because three RNA molecules participate in the transcription of the DNA. E) It is described as a triplet code because there are three nucleotides in DNA.
Which of the following is not directly involved in translation?
A. rRNA B. mRNA C. DNA D. tRNA E. Ribosomes
People who raise birds are called ______________
Fill in the blank(s) with correct word