Eusocial insects _____
a. live in extended family groups
b. include termites, honeybees, and ants
c. show a reproductive division of labor
d. all of these
D
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Which of the following statements about phospholipids is false?
a. They are amphipathic molecules. b. They contain three fatty acids chains. c. They contain a polar organic group attached to a phosphate group. d. They have cylindrical shapes that allow them to associate with water most easily as a bilayer structure. e. They have two distinct regions, one strongly hydrophobic and the other strongly hydrophilic.
An advantage of cDNA over genomic DNA for cloning genes eukaryotes that are expressible in prokaryotes is that it
a. lacks exons. b. lacks introns. c. contains plasmid DNA. d. does not require a special enzyme for production.
Which of the following is NOT associated with
a mushroom? a. gill b. dikaryotic hyphae c. nuclear fusion d. meiosis e. flagellated spores
Scientists are constantly trying to find renewable sources of energy. Which of the following is a benefit of renewable resources?
A) Renewable resources are easily accessible and less expensive to harvest. B) Renewable resources are sustainable and can be used for years to come. C) Renewable resources are not sustainable and cannot be replaced once they have been used. D) Renewable resources are usually more costly to harvest and more difficult to use.