Warm-Up
Answer the following question in a
complete sentence.
Name/Nombre
Date/Fecha
Period ____
Write down what you ate for breakfast. Where
was the food originally produced?
Construct a map to show the steps of how
your breakfast ended at you.
UNIT
Energy Flow: Trophic Levels
2
Energy Flow: Trophic Levels
Level C3
Level C2
Level C1
Level P
Energy Flow: Trophic Levels
• Autotrophs (plants) get energy
from the sun and are called
producers.
UNIT
2
Energy Flow: Trophic Levels
• Autotrophs (plants) get energy
from the sun and are called
producers.
• Primary consumers get energy by
eating producers.
UNIT
2
Energy Flow: Trophic Levels
• Autotrophs (plants) get energy
from the sun and are called
producers.
• Primary consumers get energy by
eating producers.
• Secondary consumers get energy
by eating primary consumers.
UNIT
2
Energy Flow: Trophic Levels
• Autotrophs (plants) get energy
from the sun and are called
producers.
• Primary consumers get energy by
eating producers.
• Secondary consumers get energy
by eating primary consumers.
• Tertiary consumers get energy by
eating secondary consumers.
UNIT
2
Your Turn
In your notebook, answer the following
questions in complete sentences:
1. Explain the difference between
producers and consumers.
The difference between producers
and consumers is…
2. Explain why scientists believe that
most animals would become extinct
if all plants died.
Scientists believe that most animals
would become extinct if all plants
died because…
UNIT
2
Energy Flow: Trophic Levels
In this food web, what is one…
…producer?
…secondary consumer?
…animal that is both a primary
AND a secondary consumer?
UNIT
2
Your Turn
With a partner, answer
the questions out loud
to your partner using
the sentence stems
provided.
Energy Flow: Trophic Levels
In this food web, what
are…
…the two producers?
…animal that is both
a primary AND a
secondary
consumer?
…four secondary
consumers?
UNIT
2
Closure
Answer the following question in a
complete sentence:
Do humans always occupy the same trophic level?
Suggested sentence stem:
Humans (do/do not) always occupy the same trophic
level because…
Name/Nombre
Date/Fecha
Period ____