Ecology/Ecosystems Check Up

A system made up of organisms interacting with one another and their physical environment.

• biology

• abiotic

• biotic

• ecosystem

A group of the same type (species) of organisms living in the same place at the same time.

• threatened species

• population

• community

• limiting factor

All of the populations that live in one area together is known as a(n)

• limiting factors

• populations

• community

• speed limit

Which of these are biotic factors?

• sunlight

• air

• bacteria

• rivers

• flowers

Deserts, mountains, and rivers are all examples of

• vacation spots.

• tundra.

• ecosystems.

• wetlands.

Biotic factors include

• animals, fungi, insects, and plants.

• landfills.

• soil, rocks, and water.

• both living and nonliving things.

A(n) __________ includes all living and non-living things in an environment.

• population

• niche

• abitotic

• ecosystem

The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of

• mutualism because the flower provides the insect with food and the insect pollinates the flower.

• parasitism because the insect lives off the nectar from the flower.

• commensalism because the insect doesn't harm the flower, and the flower doesn't benefit from the relationship.

• predation because the insect feeds on the flower.

Which of the following lists the levels of organization in an ecosystem from the smallest unit to the largest?

• population, organism, biome, community, ecosystem

• biome, organism, population, ecosystem, community

• organism, community, population, ecosystem, biome

• organism, population, community, ecosystem, biome

A nonliving element in an ecosystem is an 

• animal
• abiotic factor
• biotic factor
• organism