Why must cheaters be identifiable in group living at any level (e.g., multicellularity or social groups)?
What will be an ideal response?
ANS:
If cheaters cannot be identified, then the group will break down as individuals are most successful alone. If individuals are more successful alone, natural selection will favor individuals over groups, whether the indi-viduals are cells or organisms.
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Late blight of potatoes that caused the Irish potato famine is caused by members of the genus
__________. a. Myxomycota b. Phytophthora c. Giardia d. Macrocystis e. Physarum
Functional residual capacity is comprised of which of the following?
A) vital capacity and expiratory reserve volume only B) tidal volume, inspiratory reserve volume, and expiratory reserve volume C) tidal volume and expiratory reserve volume only D) tidal volume and inspiratory reserve volume only E) residual volume and expiratory reserve volume only
It may be possible to decide if an inherited condition is due to an autosomal dominant or an autosomal recessive allele by studying a
What will be an ideal response?
Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages
A) give new gene sequences to the host bacteria. B) produce toxins. C) carry plasmids. D) kill the bacteria, causing release of endotoxins. E) kill human cells.