Flow of Energy in an Ecosystem

Flow of Energy in an Ecosystem

Warm up:

• Explain WHY the top predators in a food web receive the least amount of energy from the animals they eat.

Open Ended

Explain WHY the top predators in a food web receive the least amount of energy from the animals they eat.

Checking for understanding

• An orgnanism can belong to more than one trophic level.

  
  

  What trophic levels does the Trout belong to in this food web?

Multiple Select

An orgnanism can belong to more than one trophic level.

What trophic levels does the Trout belong to in this food web?

• 1st Trophic Level: Producer

• 2nd Trophic Level: Primary Consumer

• 3rd Trophic Level: Secondary Consumer

• 4th Trophic Level: Tertiary Consumer

Multiple Choice

Which choice is the primary consumer in this food web?

• Dragon Fly

• King Fisher

• Freshwater Shrimp

• Trout

Chacking for understanding

• Why do you find fewer organisms at higher trophic levels?

• Why do organisms tend to be larger in size at higher trophic levels, but result in less biomass.

Multiple Choice

Why do you find fewer organisms at higher trophic levels?

• Due to less energy

• Due to more energy

• Incorrect, there are far more species found at higher trophic levels compared to lower levels

• Global warming

Multiple Choice

Why do organisms tend to be larger in size at higher trophic levels, but result in less biomass.

• Larger number of animals in higher trophic levels

• Fewer number of animals in higher trophic levels

• Due to the increase in temperature

• They are going extinct.

Multiple Choice

Exit Ticket: Assume that producers in this pyramid have 1,000,000 kilocalories of energy.

How much energy is available to primary consumers?

• 1,000,000 Kc

• 1,000 Kc

• 100,000 Kc

• 100 Kc