AP Biology Unit 8 (Ch 40-43) Review

According to the logistic growth model, what happens to r as N approaches K?

An organism's role in a community including its habitat and place on the food chain is its

The biannual process that mixes and distributes nutrients in temperate aquatic ecosystems is

Populations that coexist within an ecosystem are known as

Which of the following are abiotic factors in ecosystems?

This model illustrates the loss of biomass, nutrients, and energy as they pass through ecosystems

Using organisms to rebuild ecosystems after a large disturbance is referred to as

Anywhere on Earth where life exists is known as this level of organization.

A very shallow lake will most likely not have which zone?

North Dakota's most productive ecosystems per unit of area are...

According to the intermediate disturbance hypothesis, biodiversity is highest in ecosystems...

How much biomass is passed on from trophic level to trophic level, on average?

Diversity has what effect on ecosystems?

Which of the following are traits of a K-selected (density dependent) species?

It is true that energy ________ and matter ________.

An area that contains a high number of at-risk species as shown can be identified as a

How many humans are on Earth today?

Negative intraspecific interactions, like breeding males establishing territory create

Parasitism is best illustrated by...

Humans fit most closely with which survivorship curve?

Niche partitioning is most closely connected to the principle of...

Which ecological level is larger than a population but smaller than an ecosystem?

Gross primary production - total respiration of all organisms =

Population size will increase due to which of the following?

Which of the following is generally larger?

Biological magnification will have the largest impact on which trophic level?

The single greatest threat to biodiversity is...

By taking into account total species diversity and evenness, you are calculating the

In order to promote long-term human growth without destroying nature, this principle is used

Some bees have evolved to look like poisonous wasps. We define this interaction as