Which of the following is not a potential mechanism through which sympatric speciation could occur?
a. Host switching
b. Habitat differentiation
c. Founder effect
d. Female mate preference
e. Polyploidy
Answer: c. Founder effect
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Y-linked traits:
A. only affect males. B. affect primarily males, but can also affect females (depending on her parents). C. affect males and females equally. D. affect all sons of an affected male. E. only affect males, and affect all sons of an affected male.
There are no cases of -XX or Y individuals, but X individuals do exist. Propose an explanation for this statistic
What will be an ideal response?
The most successful (largest numbers of
species) forms of life that have ever evolved are the a. vertebrates. b. insects. c. humans. d. protozoans. e. mollusks.
The building blocks of nucleic acids are
a. amino acids. b. nucleotides. c. pentose sugars. d. phosphate groups. e. nitrogenous bases.