

Flow of Energy in an Ecosystem
Presentation
•
Science, Biology
•
10th - 12th Grade
•
Practice Problem
•
Medium
Standards-aligned

Felix Esparza
Used 110+ times
FREE Resource
12 Slides • 6 Questions
1
Flow of Energy in an Ecosystem

2
Warm up:
Explain WHY the top predators in a food web receive the least amount of energy from the animals they eat.
3
Open Ended
Explain WHY the top predators in a food web receive the least amount of energy from the animals they eat.
4
5
6
7
8
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?
9
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
10
Multiple Choice
Which choice is the primary consumer in this food web?
Dragon Fly
King Fisher
Freshwater Shrimp
Trout
11
12
13
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.
14
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
15
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.
16
17
18
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
Flow of Energy in an Ecosystem

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