Ecosystems Brainpop

The relationships a population has with others in its community are:

• Always harmful

• Always beneficial

• Neither harmful nor beneficial

• Sometimes harmful and sometimes beneficial

Cars, planes, and factories affect the carbon cycle by:

• Heating up their surroundings

• Releasing more carbon than ecosystems can absorb

• Producing energy

• Absorbing carbon from the ecosystems around them

Where does the energy in most ecosystems originate?

• Sunlight

• Producers

• Water

• Air

Which choice refers to a SINGLE population in this image?

• The zebras

• The plants

• The animals

• The water

A habitat is:

• Interactions between species

• Resources in an ecosystem

• Where a species lives

• Nonliving things

Which human job is most similar to the role of a producer?

• Business entrepreneur

• Energy plant worker

• Waste management specialist

• Restaurant critic

Matter _____ ecosystems.

• Flows out of

• Is found only in

• Stays in the same parts of

• Cycles around

Which sign best represents the role of decomposers?

• 
• 
• 
• 

Which of the following might be found in a freshwater ecosystem?

• Water-dwelling bacteria

• Interactions among fish

• Rocks and shells

• All of the above

Consumers get their energy:

• Directly from sunlight

• By breathing

• From eating other organisms

• All of the above