Exam 8: Life History Patterns

Altricial young are relatively

Communal courtship grounds, or ________, are areas where males congregate to display to females.

Offspring that are produced via asexual reproduction are genetically identical to the parent.

A lek is characterized by

Explain the trade-offs between size and number of offspring. Give examples of environmental conditions where one strategy is favoured over the other.

Describe the three hypotheses proposed to explain the increase in bird clutch size with an increase in latitude. Discuss which one of these hypotheses seems most probable and why.

________ young are offspring that are relatively helpless at birth and require considerable parental care.

The more energy an organism spends on reproduction, the less it has available for growth.

Explain sexual dimorphism from a Darwinian perspective.

The development of an ovum without fertilization by a male is called

The environment or place in which an organism lives is known as its ________.

Polygamy is the acquisition by an individual of two or more mates.

Polygyny is more likely to occur as differences in territory quality increase between territorial males.

The size and colour of a potential mate rarely correlates with fitness.

Polygyny is much more common than polyandry.

The mating system most prevalent in birds is ________.

Describe the different strategies (S, C, and R)as presented in Grime's model of life history variation in plants.

An organism's ________ is its lifetime pattern of growth, development, and reproduction.

All of the following are organisms without a particular adult size or that have indeterminate growth, EXCEPT

When one male mates and stays with one female, the relationship is called