In the pine life cycle, fertilization often takes place ____ pollination
a. at the same time as
b. a few days after
c. a few weeks after
d. a few days before
e. months to a year after
E
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If you moved plants from a desert-like white sand area north of Perth, Australia, to a moist-soiled forest south of Perth, what would probably happen?
A. The plants would probably do poorly since the two biomes are so different. B. The plants would probably become weeds. C. The plants would probably switch to asexual reproduction. D. The plants would probably find different pollinators. E. None of the answer choices is correct.
A 100 ml sample of water is filtered through a sterile membrane, and the membrane is transferred to a plate of m-Endo agar. Following overnight incubation at 37°C, 57 green metallic colonies appear. The coliform count is
A. acceptable for drinking water and recreational use. B. too high for both drinking water and recreational use. C. acceptable for recreational use but too high for drinking water.
Density-dependent factors become less effective as the population size increases
Indicate whether the statement is true or false