Biology chapter 4 BJU mcelveen

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

Nitrogen can be fixed by

A comparison of how many resources a person uses to how quickly they are replaced is _________

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

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

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

Bioremediation is a technique that uses organisms to

What is the difference in Earth's temperature and climate over long periods of time?

precipitation

What is an organism that moves into a region an competes with native species for resources?

bacteria in the roots of legumes

Which of the following does not increase biodiversity?

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

Primary succession would begin after

Water exits the leaves of plants during the process of

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

photosynthesis

The greatest producers of most of the free oxygen in the biosphere through photosynthesis are plants and

During the water cycle, water from underground reservoirs can seep into

lightning strikes

Evolutionary biologist believe that the extinction rate for species is increasing.

Rapid growth that can occur when resources are abundant

Eutrophication describes a process by which lakes and ponds rid themselves of excess nutrients.

Humans get their nitrogen from

Population density is

Trees are present during primary and secondary succession.

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

A carbon footprint refers to the amount of carbon that people remove from the environment through the food they eat.

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

The first organism to move in an area of during primary succession are ________ species.

Most free oxygen is produced by the decay of minerals in the earth's crust.

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

Which of the following is considered a greenhouse gas?

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

Biogeochemical processes involve both biotic and abiotic factors.

volcanic eruptions

Slower and more realistic rate of growth that accounts for limiting factors and carrying capacity.