The website www.choosemyplate.gov ________
A) sells kitchenware
B) promotes USDA's dietary guideline
C) is a private online store selling dietary supplements
D) helps you find restaurants online
Answer: B
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Who is credited with developing and documenting the first vaccination procedure against smallpox?
A. Pasteur B. Koch C. Lister D. Jenner
A nonsense mutation:
A: results in a protein that is truncated from the N-terminal end. B: would likely not affect the activity of a protein. C: would not affect the primary structure of a protein. D: must result from a shorter mRNA transcript of the gene. E: is a result of a change in a codon for an amino acid in a protein to a stop codon.
An insectivorous bird has the choice of eating (1 ) meadow beetles, which are abundant and large but expose the bird to hawk predation, (2 ) under-a-rock beetles, which are large and fatty but hard to obtain, or (3 ) under-a-leaf beetles, which are easy
to obtain but small. The bird has nestlings to feed. As an optimal forager, it will A) concentrate on under-a-leaf beetles because they are easy and safe. B) concentrate on under-a-rock beetles because they are energy-rich. C) eat one kind of beetle at a time (first under-a-leaf, then meadow, then under-a-rock), switching to a new kind when the old kind becomes scarce. D) eat all three kinds of beetles, balancing the energy spent and the risks incurred against the energy gained.
Water-soluble vitamins differ from fat-soluble vitamins in that water-soluble vitamins are:
A) less readily absorbed from the GI tract B) stored in fat tissue C) stored for a brief period of time D) rarely required as daily supplements to the diet E) not excreted in urine