Exam 4: Community Ecology, Population Ecology, and the Human Population

-On the natural restoration of disturbed land figure,choose the letter that represents the step in which perennial weeds and grasses are plentiful.

An organism with a "few young" strategy generally

As economic development increases,birth and death rates decrease.

The three main factors that led to rapid human population increases are

A species' ecological niche is its

The size of a species' population,be that animal or plant,is influenced by births,deaths,immigration,and emigration.

Species whose roles in an ecosystem are vital to the ecosystem's biodiversity are called

The facilitator of succession is the impact established species have upon their own environments.

Which of the following predators avoid competition by being active at different times?

The biotic potential of a population

Carrying capacity is the population size (or density)at which the environment is stable.

Most organisms have reproductive patterns between the opportunist and competitor extremes.

All of the following statements about parasitism are true except

____________________ occurs because greater biodiversity increases the likelihood of compatible associations,which are supported due to improved efficiency.

-On the population size as a function of time figure,choose the letter that represents population size at which a population in a particular environment will stabilize when its supply of resources remains constant.

Family planning services provide all of the following except which one?

Amphibians may be adversely affected by all of the following except

-On the logistic growth of a sheep figure,choose the portion of the curve that result from the biotic potential and environmental resistance.

The relationship between honeybees and flowers is

The country with the second largest number of people is