What is the key concept addressed by the question?
What will be an ideal response?
The question asks about how salt would prevent ice
from forming.
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The acid growth hypothesis links
A. oligosaccharins to pH changes. B. cytokinin to thigmonasty. C. auxin to cell wall expansion. D. gibberellin to root elongation. E. ethylene to leaf abscission.
An example of mutualism is:
a. remora fish attached to or following a shark. b. cleaner shrimp removing parasites from a fish. c. tapeworm living in the digestive system of a fish. d. hagfish feeding off a whale killed by an Orca. e. interactions between the barnacle species Semibalanus and Chthamalus
Seeds require ________ for germination to occur.
A. adequate warmth B. oxygen for increased metabolism C. adequate water D. All of the choices are required.
Under some circumstances, natural radioactive substances, such as radon gas, can become concentrated and pose a threat to human health.
a. true b. false