Biology, Unit 2 Test - Chapters 3 & 4 Review

An organism that feeds on and breaks down dead plant or animal matter

An organism that makes its own food

Nitrogen in the atmosphere must be converted to other nitrogen-containing compounds before it can be used by organisms.

Each level on an ecological pyramid--producers, herbivores, carnivores--is known as a trophic level.

A limiting factor is the maximum number of a particular species that an ecosystem can sustain.

Way an organism lives in its habitat, including its effects on the habitat and other organisms in it, is known as its

Large-scale ecological footprint calculations generally faulty; don't consider complex human/environment interactions.

An animal that gets its food only from plants

The species that occupy an ecosystem at the end of secondary succession are called ________ species.

An ecosystem usually contains many types of habitats.

The study of ecology includes the study of the interrelationships between organisms and

As scientists have improved complex model systems, they've discovered the world is more chaotic than previously thought.

Autotrophs are also known as

Projections of future changes in the environment that are based on small historical samples are usually very reliable.

Which of the following would be considered a biotic factor of an ecosystem.

Carbon in the atmosphere is produced only by bacteria, animals, and humans.

Competition can occur between

Competition occurs when organisms try to use the same resources.

After the Flood, which of these things did God say would continue without fail?

The biosphere includes all parts of the earth and its atmosphere.

Which of the following statements is compatible with a biblical worldview?

Sustainability refers to the ability of the biosphere to maintain balance.

Ideally, one E. coli bacterium can grow into a colony of over 2 million in less than seven hours due to ______ growth

Doves move into new areas, populations grow rapidly, but growth tapers off as the doves as they approach their _______

An organism that cannot make its own food

Primary succession would begin after

Symbiosis is when different animals live together and interact with each other within a particular habitat.

Most free oxygen (O₂) in the earth's atmosphere is produced by

Heterotrophic organisms are also called consumers.

Humans get their nitrogen from

Which of the following would reduce a society's ecological footprint?

The two primary factors that determine a climate

The Earth's ability to maintain its balance indefinitely by cycling water and other resouces is known as

A food web is composed of overlapping food chains.

An animal that preys on other animals for food

Nitrogen can be fixed by

Which of the following is a greenhouse gas?

Dead plant and animal material is known as detritus.

Which of the following is a benthic organism?

Population density is the

A climax species is one that is stable, long-lived, and marks the end of succession.

Measure of how many resources human population uses and rate at which those resources can be replaced is a population's

A particular type of biome tends to be restricted to a large part of Earth.

When an organism depends on another organism for food--called the host--the dependent organism is exhibiting:

Which of the following is not a part of the water cycle?

The term biodiversity refers to

Biochemical cycles trace the flow of matter through the earth's atmosphere, but not through its crust.

Water vapor can enter the atmosphere by transpiration from plants and and evaporation from surface water.

Two different organisms living together and interacting with each other that benefits both organisms is commensalism.

According to a biblical worldview, the earth's climate has remained constant throughout its history.

A populations consists of all members of a particular species within an ecosystem.

The nonliving factors in the environment are its abiotic factors.

Which of the following shows a plausible food chain?

Humans can reduce the biodiversity in an ecosystem by overusing resources or by introducing new species.

A greenhouse gas is a gas in the earth's atmosphere that traps heat.