Cycles, Food Web and Trophic Pyramid Practice

What do the arrows show in a food chain?

• They point to the smallest animals

• They point to the animal that tastes the best

• They point to just the producers

• They point in the direction that energy is flowing

Tags

NGSS.MS-LS2-3

Put this food chain in the correct order

• Rabbit

• Hawk

• Snake

• Grass

Tags

NGSS.MS-LS2-3

Match each organism with the correct trophic level

• Squirrel

• Secondary Consumer

• Grass

• Primary Consumer

• Mountain Lion

• Producer

• Bacteria

• Decomposer

• Insect Eating Bird

• Apex Predator

Tags

NGSS.MS-LS2-3

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

• 10%
• 50%
• 90%
• 100%

Tags

NGSS.MS-LS2-3

In this food web, which two organisms could be harmed if the mouse population were to decrease?

• Deer and caterpillar
• Wolf and snake
• Oak and grass
• Hawk and songbird

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Decomposers affect all levels of the food web. 

• True 
• False

If the grass were to be removed completely from the food web, what organism would be most effected?

• The squirrel
• The shrew
• The grasshopper

• The rabbit

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The process of plants using energy from the sun to create the first trophic level is called?

• Photosynthesis
• Chemosynthesis
• Cellular Respiratation
• Primary Producers