Unit 3 Science Review

The non-living parts of an ecosystem are called___________

• Abiotic Factors

• Biotic Factors

• Ecosystem

• Factors

To produce their own food, algae and plants use the abiotic factors such as sunlight, carbon dioxide and_________

• Oxygen

• Water

• Soil

• Minerals

An organisms particular role in its habitat, or when and how it survives, is called it's___________

• Niche

• Adaptation

• biotic factors

• reflexes

A population is all the members of one species living in a particular

• house

• ecosystem

• area

• shelter

A group of antelope leaving the herd in search of better grassland is an example of___________

• immigration

• exodus

• emmigration

• leaving

A hawk building its nest on the arm of a saguaro is an example of____________

• Mutualism

• Commensalism

• Parasitism

• nesting

A lack of places to build nests is an example of _________ as a limiting factor for a population of birds.

• Water

• Weather

• Space

• Soil

The part of the ecosystem where an organism lives and feeds is called it's______________

• Home

• Habitat

• Area

• Ecosystem

Nutrients in the soil from decaying remains of animals is a(n)___________ factor of an organisms habitat.

• Biotic

• Abiotic

• Living

• Non-living

All the biotic and abiotic favtors in an area working together make up a(n)___________

• Area

• Ecosystem

• Habitat

• Environment