Type I diabetes is characterized by ___________.
A. high blood insulin levels
B. low blood sugar levels
C. destruction of insulin-secreting beta cells
D. low glucagon levels
E. higher than normal uptake of glucose from the blood
Answer: C
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Which phrase best describes a plant that is an epiphyte?
(a) a plant that grows upon another plant. (b) a parasite. (c) a plant with the gametophyte generation dominant and conspicuous. (d) a plant that has a mutually beneficial relationship with another plant.
People who are lactose intolerant
A. produce inactive lactase. B. have a genetic polymorphism of the lactase gene that turns off lactase production after weaning. C. must drink soy (non-dairy) formula as infants. D. have a mutation in the promoter region of the lactase gene. E. have mutations in regulatory regions of the lactase gene.
From which generation does the pollen grain develop?
a. from the female gametophyte b. from the female sporophyte c. from the male sporophyte d. from the male gametophyte
The inner membrane of the mitochondria can be compared functionally to the thylakoid membranes of the chloroplast because both contain a system for
A) enzyme synthesis. B) glucose synthesis. C) electron transport. D) anaerobic respiration. E) pyruvate production.