Life Science Unit 1 Levels of Organization

An environmental factor that causes a population to decrease.

• ecology

• population

• limiting factors

• habitat

This is the study of how living things interact with each other and their environment.

• Ecology

• Species

• Community

• Population

This is a living thing

• ecology

• habitat

• organism

• limiting factors

An environment that provides the things an organism needs to live, grow and reproduce.

• ecology

• species

• organism

• Habitat

A living part part of an organism's habitat.

• abiotic factor

• biotic factor

• species

• organism

A nonliving part of an organism's habitat

• abiotic factor

• biotic factor

• organism

• species

A group of organisms that are physically similar and can also mate with each other and produce offspring that can also mate and reproduce.

• abiotic factor

• biotic factor

• species

• ecology

All the members of one species in a particular area.

• population

• habitat

• limiting factors

• organism

All the different populations that live together in an area.

• population

• community

• ecology

• species

The community of organisms that live in a particular area, along with their nonliving surroundings.

• population

• community

• ecosystem

• species