Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
What will be an ideal response?
The best answer is that hydrogen bonds form between water molecules. As one water molecule
evaporates it pulls the next water molecule up, moving water through the xylem.
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Changes that occur at the genetic level in populations are classified as ________
A) chemical evolution B) microevolution C) gradualism D) macroevolution
Why are the testicles kept outside of the body?
A) They lower the temperature for sperm production. B) The testicles cushion the penis and stop it from hanging too low. C) There's no reason for this. D) Earlier in human evolution, visible testicles helped males to sexually attract females.
Competition among individuals of different species is called
A. interspecific competition. B. intraspecific competition. C. resource competition. D. basal competition. E. commensalism.
Selective expression of either the maternal or paternal copy of a gene is called ____________________. Fill in the blank(s) with the appropriate word(s)