Because increased fecundity means increased fitness, we might expect to observe the evolution of ever-increasing fecundity, but this is not the case. Which reason for lower-than-expected fecundity is plausible?

The decision states that legislation cannot overcome social prejudice. can it reinforce social prejudice? how?

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?

The american public was excited by the invention of the railroad system. true false