The concept of _____________ proposes that species change little or gradually over long periods
of time and then evolve quickly to give rise to new species. Fill in the blank(s) with the appropriate word(s).
punctuated equilibrium
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The stepped-leader
A) moves downward in one continuous movement. B) occurs after the formation of the return stroke. C) creates the pathway for the flow of electrons. D) has no similarities to a dart leader.
a mode of natural selection in which an extreme phenotype is favored over the other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype
What will be an ideal response?
The banning of TV set and computer disposal in landfills by 35 states in the U.S. is expected to
a. cause interstate smuggling of e-waste b. be regulated by the federal government c. be voted down by consumers during the next general election d. set the stage for an emerging highly profitable e-recycling industry e. none of these answers
Which of the following is the measure of the total amount of water vapour in the air?
A. average temperature B. dew point temperature C. maximum temperature D. minimum temperature