Ch. 9 Quiz

conflict between the mother and the fetus with respect to how much glucose the fetus should receive.

Gestational diabetes is thought to be the consequence of:

multiple males tend to mate with the same female.

In a polyandrous mating system:

polygyny.

In a species such as elephant seals, in which males are significantly larger than females, the most likely mating system is:

an older female in the colony in which she was born.

The Belding's ground squirrel giving off an alarm signal in the figure would most commonly be:

reproductive investment.

The energy that a parent puts into the growth, feeding, and care of offspring is called:

Ancestral humans who preferred fatty foods were less likely to starve, leaving more offspring in the next generation.

What is the ultimate explanation for modern human preference for fatty foods?

a fixed action pattern.

When a goose spots an egg outside of its nest, the goose gets out of the nest and rolls the egg back. Once started, a goose continues the egg-retrieval movement all the way back to the nest, even if the egg is taken away during the process. This is called:

reduce paternity uncertainty.

Mate guarding is a reproductive tactic that functions to:

kin selection; reciprocal altruism

Most apparent acts of altruism in the animal kingdom have proved, on closer inspection, to be not truly altruistic. Instead, they have evolved as a consequence of either _____________________ or _____________________.