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Presentation transcript:

Practice

What do food chains show the transfer of? Energy

How is energy transferred in this part of the food chain? Photosynthesis

Explain how energy is transferred in this part of the food chain. Eating

Explain how energy is transferred in this part of the food chain. Decomposition Decomp.

Decomp.

Decomp.

Put the organisms below into the correct order to construct a polar food chain. Zooplankton  Shrimp  Arctic char  Arctic seal Orca Shrimp Arctic seal Arctic char Orca zooplankton

ORCA ARE MURDERERS.

Explain what is wrong with the polar food chain below. Energy is being transferred in the wrong direction

Differentiate between diagrams A and B below. Energy A C O O Matter B

A B Explain how the flow of energy differs from the flow of matter. One direction Does not cycle A C O O B

The autotroph below has energy The autotroph below has energy. Explain why that energy, once it is taken by a rabbit and then a fox, cannot cycle back to autotrophs the way atoms can. Used up

Which activity in living things uses up 60-70% of cells’ energy? Active transport

Explain why organisms, even while they are at rest, are still losing energy. Lost as heat

Just of the energy is passed on when living things get eaten. 10% #40 in SG 100 10 1 .1 .01

Explain why there are no more trophic levels after the eagle. No energy left to pass on Used up Lost as heat 100 10 1 .1 .01

Ocean food chains are different from land-based food chains because they involve microscopic organisms called . plankton

The green, non-mobile plankton are called ; they are like microscopic . phytoplankton plants

The moving plankton are called ; they are like microscopic . zooplankton animals

Phytoplankton are important because they are the main in the ocean. autotrophs

A B Differentiate between processes A and B. Photosynthesis Chemosynthesis B

Chemosynthesis occurs at the bottom of the ocean near vents, where does not reach. hydrothermal light

Identify the energy source in a hydrothermal vent ecosystem. Chemicals

Identify the autotrophs in a hydrothermal vent ecosystem. Chemosynthetic bacteria