Exam 10: Life History

The mating system in which males and females mate with one or many of the opposite sex and form no pair bond is known as

In which of the following groups of organisms are most species iteroparous?

In some species of birds,males with the brightest plumage have the fewest parasites.

The development of modern corn from teosinte,a group of large Central and South American grasses,is an example of

Habitats that are variable in time or short lived will favor ________-strategists.

Organisms that invest all their energy into growth,development,and energy storage,followed by one massive reproductive effort and then death,are called ________.

________-strategists are competitive species with stable populations of long-lived individuals.

A female exhibits two major approaches in choosing a mate,selecting either the phenotypic characteristics of the mate or the

A lek is characterized by

The preferential selection by a female of a male peacock with the longest tail feathers and the most eyespots on the tail feathers is an example of

________ is the number of offspring produced per unit of time.

Little parental care is required by ________ offspring,which are able to move about and forage for themselves shortly after birth.

In polygynous species of animals,males usually choose their mates,and females,because they are smaller and weaker,must comply.

Small and short-lived plants that rapidly colonize disturbed sites are classified by J.Phillip Grime as

Natural selection will favor the age at maturity that results in the greatest number of ________ produced over the lifetime of an individual.

Semelparity is favored when the external environment imposes high adult mortality relative to juvenile mortality,and mature individuals are unlikely to survive much longer.

The phenotype expressed by a single genotype can be affected by environmental conditions.

All species of animals provide parental care.

The number of seeds produced by a plant is ________ correlated with the size of the seeds.

________ selection occurs when members of the same sex compete for access to the opposite sex.