VHS-GeoSci-Populations-

Which is considered the foundation level of organization in an environment?

• community

• ecosystem

• organism

• population

Which phrase defines a community?

• environment where nonliving things exist

• group of the same species that live together

• group of several populations living in an area

• environment where living and nonliving things interact

Plants absorb nutrients from soil, and nutrients help plants grow. Which level of organization best describes this interaction between plants and soil?

• community

• ecosystem

• organism

• population

Which statement describes a biotic factor interacting with the environment?

• Water flows down a creek bed.

• Soil contains nutrients for growth.

• Deer graze through the grassland.

• The sun emits solar rays that reach Earth.

What is one way to classify mud found in an ecosystem?

• organism

• population

• biotic factor

• abiotic factor

Which descriptions can be used for sand on a beach?

• abiotic factor, once living

• biotic factor, living thing

• biotic factor, nonliving thing

• abiotic factor, nonliving thing

Which description shows competition in an environment?

• an organism that feeds on some food

• an organism that finds a place to sleep

• three organisms of the same species living in an area

• three organisms battling over limited resources

Which factor do trees need when they compete for energy?

• soil

• sunlight

• space

• ability to reproduce

Which statement describes competition in an environment?

• Organisms share a place to sleep.

• A living thing consumes berries on a tree.

• Sunlight shines only three months out of the year.

• A stream supplies an abundance of water in a forest.

Which statement describes a population in which there is a competition for energy?

• Several lions fight over a recent animal kill.

• Male peacocks fight one another for a female.

• Elephants are in search of water during a dry season.

• Squirrels are searching for a new place to make a nest.