ECOLOGY

Organisms and their nonliving environment are connected

• true

• false

Natural catastrophes can upset the balance of an ecosystem.

• true

• false

Pollution caused by pesticides and fertilizers is limited to areas close to the source (farms).

• true

• false

Recycling of garbage, solid wastes and certain crops for generating energy has been accomplished already.

• true

• false

The Earth's food chain starts with:

• carnivores

• plants

• proteins

• zooplanktons

What is meant by "solar radiation equilibrium" in the related ecology principle?

• the complex atmospheric conditions combined with the net influx and radiation outflux produces a long term balance

• the ecosystem of the earth is maintained by the constant heating of the planet

• the exact incoming solar radiation is necessary for sustaining life

Which ecosystem is the most resistant to permanent change?

• limited organisms in confined areas

• few organisms in a large region

• diverse organisms in a large region

The best word to describe a group of microorganisms which float on water is:

• community

• ecosystem

• food chain

• environment

Biomes are usually named from:

• the variety of fauna

• the variety of flora

• the type of climate

• the community of organisms

Ideally, an inventory of an ecosystem should be taken:

• before a problem is suspected

• as soon as a study is needed

• when species may be in danger of extinction