FOOD CHAIN & FOOD
WEB
By: Seth Dorion & Brandon
McFarlane
TABLE OF CONTENTS

3. Food Chain

4. Food Web

5. Ecosystem

6. Role of a Producer

7. Primary Consumer

8. Secondary Consumer


9. Autotroph
10. Heterotrophs
FOOD CHAIN
 Food Chain:
Is a step by step sequence linking organisms that feed on each other, starting
with a food source such as plants (Producers), and continuing with animals
and other living things, that feed on the plants and on each other (Consumers).
FOOD WEB

Food Web:

Is a complex order of smallest to largest organisms, they all
interlock with each other to form a feeding relationship called a
food web. Each ecosystem has different animals and each other
living organisms that all feed on each other differently than other
organisms in other ecosystems. The sun is important because it
gives energy to the plants which gives energy to deer which give
energy to other animals.
ECOSYSTEM

Ecosystem:
 Every
living thing is part of a complex web of
relationships that we call an Ecosystem.
Every species has a role, if even one species
is removed the Ecosystem may change. An
Ecosystem is where Food Webs and Food
Chains occur.
ROLE OF PRODUCER

Role of a Producer:

Organisms that can make their own food from
nutrients and sunlight or some other non living food
source, placed in the first trophic level, also known as
a Producer. An example of a Producer would be a
plant such as a flower.
PRIMARY CONSUMER

Primary Consumer:

The second trophic level contains organisms that feed on the
producers. Primary Consumers rely on Autotrophs directly for
the source of energy.
SECONDARY CONSUMER
 Secondary

Consumer:
Are animals in the third trophic level. They rely on
Primary Consumers for their source of energy. But they
are still dependent on the Autotrophs in the first trophic
level.
AUTOTROPH

Autotroph:

Organisms that can make their own food from basic nutrients and
sunlight or some other non living energy source.
HETEROTROPHS

Heterotrophs:

They cannot make their own foods, and so must obtain their food
and energy from Autotrophs or other Heterotrophs. Human beings
are Heterotrophs.
LONG ANSWER QUESTIONS.

What is a Ecosystem?

What is a Producer?

Whats the difference between Primary & Secondary Consumer?

What is a Food Web?
TRUE FALSE QUESTIONS

Every species has a role in an Ecosystem T/F

Secondary Consumer eats the Primary Consumer T/F
MULTIPLE CHOICE

What’s a Primary Consumer?

A. Relys on Autotroph for energy

B. Eats Secondary Consumer

C. Autotroph relys on Primary Consumer

What’s a Heterotroph?

A. They obtain food & energy from Autotroph

B. They make their own energy

C. They make their own food
SHORT ANSWER QUESTIONS

Are Food Chains & Food Web the same thing?

Is an Ecosystem important to the animals? Why or why not?