Food Webs, Trophic Levels, Symbiotic Relationships

In the food web shown, who is the secondary consumer?

• grass

• mouse

• rabbit

• fox

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What does a primary consumer eat?

• tertiary consumers

• secondary consumers

• producers

• decomposers

Tags

NGSS.MS-LS2-2

For an energy pyramid, the 10% rule states that

• 10% of the energy is transferred from one organism to the next.

• 10% of the energy is gained.

• 10% of the animals will starve.

• 10% of the producers are eaten.

Tags

NGSS.MS-LS2-3

An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger
• consumer
• decomposer
• carnivore

Tags

NGSS.MS-LS2-3

What does a food web represent?

• All connections of energy flow throughout all organisms in a ecosystem.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

Tags

NGSS.MS-LS2-3

What is missing from this food chain?
Grass > Grasshopper > Bird > Snake

• Producer
• Primary Consumer
• Secondary Consumer
• Decomposer

Tags

NGSS.5-LS2-1

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%
• 20%
• 80%
• 90%

Tags

NGSS.MS-LS2-3

A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?

• A
• B
• C
• D

Tags

NGSS.MS-LS2-3

If the producer has 20,000 kJ of energy, how much energy should the secondary consumer have?

• 2,000 kJ

• 500 kJ

• 200 kJ

• 1,000 kJ

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-LS2-4

Which one is NOT an example of a decomposer?

• mushroom
• leaves
• mold
• worm