PCS Unit 9 - Food Chains and Food Webs

What is the study of the interactions among organisms and  between organisms and their environments called?

• Biology
• Ecology
• Astronomy
• Biosphere

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

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

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

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NGSS.MS-LS2-3

Which of these is an example of an autotroph?

• Sunflower
• Krill
• Leopard
• Hummingbird

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NGSS.MS-LS1-6

What does every food chain start with?

• producers
• sun
• consumer
• decomposers

Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Energy increases as you move up the food pyramid (from bottom to top).

• True 
• False

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NGSS.MS-LS2-3

Which of the following is NOT a consumer

• grass
• dog
• shark
• fish

What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

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NGSS.MS-LS2-3

What does a food chain represent?

• How all living organisms within a habitat are connected.
• All of the things that a particular animal eats.
• How plants create their own food.
• A single path of energy transfer within a habitat.

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NGSS.MS-LS2-3

A connection of food chains with many food energy paths in an ecosystem is a ____________.

• ecosystem
• food web
• environment
• population

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NGSS.MS-LS2-3