Energy and Matter in Ecosystems

Which of the following is an example of a food producer?

• Human
• Grizzly Bear
• Orca
• Oak Tree

The capturing of the suns energy is possible through a process called _____________

• Chemosynthesis
• Photosynthesis

What type of organism makes its own food?

• consumer
• carnivore
• producer
• animal

Which choice has a group of only consumers?

• grass, cows, birds
• tigers, turtles, seaweed
• owl, snake, bear
• castus, sun, mushroom

Which choice has a group of only producers?

• red wolf, coyote, grey wolf
• sunflower, grass, pine tree
• mushrooms and worms
• seaweed, algae, mushrooms

How is the sun a part of a food chain?

• it is eaten
• it is the energy source
• it feeds animals
• it tastes good

What role do decomposers play in an ecosystem?

• Produce food
• recycle matter
• provide oxygen
• supply water

Matter is neither created nor destroyed in ecosystems

• True

• False

The overlapping food chains in an ecosystem

• food chain

• food web

• decomposers

• producers

the continuous movement of water between the Earth’s surface and the air, changing from liquid into gas into liquid

• water cycle

• oxygen-carbon dioxide cycle

• nitrogen cycle