This makes up all of the populations that live in a certain area.

Plants and other organisms that make their own food need or require this to do photosynthesis.

Tight relationship between two species.

Relationship in which both species involved benefit.

Where does the energy in most ecosystems begin?

Displays a series of overlapping food chains.

Process plants do to make sugar.

General weather of a given area on a consistent basis is called?

Warmer temperatures and regular precipitation make coniferous ______ suitable for tree growth.

Which of the following organisms is a carnivore?

Kingdom that is made up of one-celled organisms and simple many-celled organisms?

Producers that contain a stem or tube-like structure for internal transport of food and water.

Referred to as distance from east to west of the prime meridian

Tendency of a mineral to break in a way that is not along a flat surface.

Ability of a mineral to resist being scratched.

Type of instrument or scale used to measure the magnitude of earthquakes.

What forms when material from the inside of the Earth reaches the surface?

Rivers and sheets of ice that remain all year are known as?

Actual age of an object or event is referred to as?