Ecosystems

What is the science that studies the interactions of living organisms with their environment?

• Geology

• Biology

• Ecology

• Envirology

Plants, animals, fungi, protists and bacteria are what kind of factor?

• abiotic

• biotic

Organisms that use sunlight to make its own food are called

• autotrophs

• heterotrophs

• consumers

Any part of the Earth in which life exists is the

• ecosystem

• biome

• community

• biosphere

A group of ecosystems that share similar climates

• community

• biome

• ecosystem

• biosphere

Physical, nonliving factor that shapes an ecosystem is

• biotic

• abiotic

An organism that obtains food by consuming other living things is a

• autotroph

• producer

• heterotroph

• prey

A network of complex interactions formed by the feeding relationships in an ecosystem is a

• food chain

• food web

The total amount of living tissue in a trophic level

• biome

• biosphere

• food chain

• biomass

A series of steps in an ecosystem in which organisms transfer energy by eating and being eaten

• food web

• food chain