__________ are thickened underground stolons used
for nutrient storage.
a. Stolons
b. Rhizomes
c. Bulbs
d. Corms
e. Tubers
Answer: e
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The carrying capacity refers to the
A) minimum amount of resources needed to sustain a finite population with zero population growth. B) maximum sustainable population size for the prevailing environment. C) minimum number of individuals in a population required to assure reproductive success. D) maximum growth rate of a population in which resources are unlimited.
When plants first colonized land, the space they occupied was two-dimensional: the surface of the land. Which adaptation allowed plants to occupy a three-dimensional environment?
A) double fertilization B) seeds C) vascular system D) flowers
During a stay in the hospital, an accident victim develops symptoms of bacteremia. A blood sample shows the presence of Gram-positive cocci in pairs. Lab tests determine that the bacteria are nonhemolytic and bile salt tolerant. The bacteremia is likely due to
A) Enterococcus. B) Mycoplasma. C) Staphylococcus. D) Streptococcus. E) Listeria.
Small organic molecules called ________ function as enzyme cofactors.
Fill in the blank(s) with the appropriate word(s).