Which of the following is a characteristic of r-selected organisms?
a. mature late
b. increased parental care
c. lower longevity
d. larger offspring
c. lower longevity
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Understanding the role of telomerase has helped scientists decipher the number of times a cell can divided. If scientists could increase the telomerase activity in specific cells this could prevent
A. aerobic respiration. B. All of the answer choices are correct. C. meiosis. D. cancer cell formation. E. aging of cells.
Flagella are stained with
a) carbolfuchsin. b) malachite green. c) methylene blue. d) crystal violet.
Heterotrophic stramenopiles that grow as a mesh of nutrient-absorbing filaments with cellulose cell walls are known as _______.
A. diatoms B. brown algae C. fungal molds D. water molds E. kelp
The fruits of legumes
A. have hooks that cling to mammals and are dispersed by them. B. are fleshy and sweet and are dispersed by birds. C. have corky hulls that make them buoyant and are dispersed by water. D. split down both sides and the seeds fall out. E. are winged and dispersed by wind.