Which of the following is NOT a form of
passive transport?
a. osmosis
b. facilitated diffusion
c. simple diffusion
d. exocytosis
e. none of these
D
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Some insects
a. lack wings. b. mature without undergoing metamorphosis. c. are highly social. d. have mouth parts specialized for bloodsucking. e. fit all of these descriptions.
________ is the differential success of individuals in a population in response to environmental conditions
Fill in the blank(s) with correct word
Which of hte following would be a position held by someone that believed in the punctuated equilibrium theory?
a. Most evolutionary change occurs during relatively short times of dramatic change or enviromental challenges. b. There is a continuous slow gradual change from one species to another species c. One should expect to find many transitional fossils left by organisms in the process of forming a new species d. Natural selection plays a very minor role in the mechanism of evolution e. Given nough time, most existing species will gradually evolve into mew species
Which one of the following is not a variation of flowers frequently considered in investigations of flowers and their functions?
A. number of parts B. color C. shape D. fragrance E. preferred soil conditions