Primates need to groom their fur for parasites. Grooming can be either done cooperatively by another indi-vidual or individuals can groom themselves
Grooming oneself requires more time and energy than grooming another individual. What corresponds in this system to the following elements of the prisoner's dilemma?
P = Punishment for mutual defection:
R = Reward for mutual cooperation:
S = "Sucker's" payoff:
T = Temptation to defect:
What will be an ideal response?
ANS:
P: Having to groom oneself, R: Getting groomed minus grooming another individual, S: Grooming another in-dividual and grooming oneself, T: Getting groomed without grooming another individual
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Complete androgen insensitivity causes XY males to become phenotypic females
a. True b. False
Evidence from yeast suggests that the maturation-promoting factor of sea urchins is
a. a cyclin. b. MFP. c. an S nuclease. d. a Cdk. e. a Cdk/cyclin phosphatase.
Which of the following results from inserting foreign DNA into an organism to produce a new gene combination?
A) Regulatory genes B) Gene cloning C) Mutations D) Translation E) Recombinant DNA
Answer the following statements true (T) or false (F)
1. Animal biomass exceeds plant biomass in most ecosystems. 2. Air pollutants can increase heritable mutations. 3. Insect densities tend to decrease in elevated CO2, all things being equal. 4. Biomagnification of chemicals such as DDT results in lower trophic levels becoming enriched in these chemicals.