Organism & Their Environment

____________ is the principal source of energy input to biological systems.

• water

• air

• moon

• sun

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Organisms that hunt and eat other organisms.

• predator
• prey
• parasitism
• mutualism

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An place where an organism lives.

• niche

• habitat

• abiotic factors

• biotic factors

The organisms that are being hunted is ....

• predator

• prey

• parasitism

• mutualism

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How do plants get their food?

• Plants get their food from minerals. 
• Plants use energy from the sun, air and water to make food.
• Plants get their food from dead plants and animals. 
• Plants get their food from soil. 

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Which organisms are producers?

• chipmunks, skunks, raccoons
• grass, trees, shrubs 
• bears, snakes, hawks
• all organisms are producers

Prairie dogs, ferrets, rabbits, mice and owls are all _______________.

• consumers
• producers
• prey 
• decomposers 

why is only about 10% of the energy available within 1 trophic level transferred to organisms at the next trophic level

• Energy is lost at each level in the food chain

• energy used up for movement

• Energy is lost through the process of respiration (as heat)

• all of the above

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Autotrophs like plants, make their own food through

• anerobic respiration

• aerobic respiration

• photosynthesis

• lactic acid fermentation

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Arrows in food webs and food chains show

• predator-prey relationships

• transfer of energy

• mutalistic relationships

• patterns of inheritance

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