APES - Unit 4 Review (2018)

Most parasites have evolved to ___ their host

Populations with a rectangular-shaped age structure diagram

Populations whose age structure diagrams are narrower at the bottom at the top have

A species that plays a major role in determining the structure of the ecological community

The intrinsic growth rate of a population

Developing countries tend to have a(n)___ age structure diagram

The total fertility rate is an estimate of

A country's impact on the environment is influenced by

Organisms that represent all of the different interacting species within an ecosystem make up a

Under which of the following conditions would a population grow?

Populations of predators increase when populations of prey are high because

Which of the following is NOT an example of two organisms in a mutualistic relationship?

The birth rate of a population is expressed as a

When all vegetation is removed from a site, ___ species are the first to colonize

The infant mortality rate is the number of deaths per 1000 for children under

The child mortality rate is the number of deaths per 1000 for children under age ___.

At present, Earth's human population is

Life expectancy is _, ranging from _ in the U.S. to _ in many sub-Saharan African countries.

The biologist who studies interactions at the community level investigates interactions between

The human population is currently a J-shaped curve. This means the population is growing

According to the theory of demographic transition, rapid growth occurs during phase

Which of the following is NOT an example of two organisms in a parasitic relationship?

The term symbiosis includes which of the following relationships?

Using the rule of 70, a population growing at 10% would double in

Tapeworms in the human gut are an example of

What characteristic best distinguishes predators from parasites?

If a population's age structure diagram looks like a pyramid, the population

According to the theory of demographic transition, the highest birth rates and death rates are

An interaction between two species, in which one species benefits and the other is unaffected

Predation is similar to ___ in that one benefits and the other is harmed