Name
Class
Date
3.2 Energy, Producers, and Consumers
Lesson Objectives
Define primary producers.
Describe how consumers obtain energy and nutrients.
Primary Producers
1. What do autotrophs do during photosynthesis?
Consumers
2. Complete the table about types of heterotrophs.
Types of Heterotrophs
Type
Definition
Herbivore
Examples
cows, rabbits
Heterotroph that eats animals
humans, bears, pigs
Omnivore
Detritivore
Decomposer
Heterotroph that consumes the carcasses of
dead animals but does not typically kill them
itself
3. What is a consumer?
4. How would you categorize a consumer that usually catches and eats prey, but also eats
dead animal carcasses?
Concept Map The concept map below shows the relationships between different types of
organisms in this lesson.
decomposer
photosynthesis
detritivore
chemosynthesis
heterotroph
omnivore
herbivore
scavenger
carnivore
primary producer
also
called
autotroph
uses solar
energy for
the process of
is ingested
by a
uses chemical
energy for the
process of
also called a
consumer
meat-eating
plant-eating
detritus
detritus
producing
feeding
Follow the directions.
5. List each of the terms in the concept map that is a type of consumer.
plant & meat-eating