Unit 1 Section 2: Video Notes Review (ES)

Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.

• parasitism
• commensalism
• mutualism

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 Hermit crabs live in shells made and then abandoned by snails. This relationship neither helps nor harms the snails.

• parasitism
• commensalism
• mutualism

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Barn owls hunt shrews. In this example what is a barn owl?

• Herbivore/Predator
• Carnivore/Prey
• Carnivore/Predator

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How do consumers get their energy? 

• laying in the sun
• eating other organisms 
• providing food for other organisms
• surviving in an ecosystem 

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If a hawk eats a snake, the snake is the...

• Predator
• Alpha
• Prey
• Mutualistic partner

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This occurs when organisms try to get the same resources.

• Symbiosis

• Competition

• Predation

• Parasitism

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An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms is a:

• Predator
• Autotroph
• Producer
• Decomposer

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An organism that eats other organisms to obtain energy is known as a:

• Mutualist
• Autotroph
• Producer
• Heterotroph

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Where do krill get their energy from?

• Phytoplankton
• Fish
• Phytoplankton & Fish
• Blue Whale

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The direction of the flow of energy in a food web is represented by ___.

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

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