Biosphere review

Front

What makes a species invasive?

Back

Moving to a new ecosystem and taking resources from natives.

Front

What is the original energy source for ecosystems?

Back

Sun.

Front

Who is considered the producer in an ecosystem?

Back

Plant.

Front

What compares the energy of each trophic level?

Back

Energy Pyramid.

Front

How much energy does each organism get from the level below?

Back

About 10%.

Front

Define 'Biosphere'.

Back

The global sum of all ecosystems; the zone of life on Earth.

Front

What is a 'Trophic Level'?

Back

Each step in a food chain or food web, representing a different level of energy transfer.

Front

What is 'Photosynthesis'?

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is a 'Food Chain'?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is a 'Food Web'?

Back

A complex network of feeding relationships among various organisms in an ecosystem.