An increase in the rate of respiration indicates an
a. increase in ATP production.
b. increase in ATP utilization.
c. increase in O2 production uptake.
d. all of the above.
d
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The plant hormone ____ causes chloroplasts to mature
a. cytokinin b. salicylic acid c. abscisic acid d. ethylene e. gibberellin
About twelve to twenty-four hours after the previous
meal, a person’s blood-sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, though it may rise to 130 mg/100 ml after meals high in carbohydrates. That the blood-sugar level is maintained within a fairly narrow range despite uneven intake of sugar is due to the body’s ability to carry out a. adaptation. b. inheritance. c. metabolism. d. homeostasis. e. all of these.
BRCA1 is a gene involved in repair of double-stranded DNA breaks. Mutant forms of this gene are linked to a substantial proportion of familial breast cancers
A woman who inherits a certain allele of the gene has about a 60-80% chance of getting breast cancer, as well as an elevated chance of getting ovarian cancer, in her lifetime. a. Why don't a higher percentage of women with the mutation get breast cancer? b. How would the breast cancer inheritance caused by BRCA1 be described in Mendelian terms?
The sea heats and cools
A. three times a day. B. more quickly than the land and more slowly than the land. C. more quickly than the land. D. more slowly than the land. E. at the same rate as the land.