Answer to Question 1
b;
Answer to Question 2
Tit-for-tat (always cooperating on the first trial, and on subsequent trials, doing whatever its opponent did on the
previous trial), is an effective strategy for inducing cooperation in the 2-party prisoners dilemma game. It does not
care that it can never beat the opponent; it always begins the interaction by cooperating and is never the first to
defect; it reciprocates defection; and it is so simple that people can quickly figure out what to expect from the
counterparty.
Development of epithelial appendages.
Major three factors of blood pressure.
How much the temperature will rise depends on many factors that affect the level of GHG emission
The Clean Development Mechanism allows developed countries
Human embryo at successive stages of development (not to scale).