201
Food webs/Chains
3/16/2015
Starter: Pre-Test
Explain what you know about
each of the following
relationships:
producer/consumer
predator/prey
parasite/host
Practice
Relationship
Relationship
1
8
2
9
3
10
4
11
5
12
6
13
7
Food Webs/Chains
202
3/16/2015
Application:
Notes glue here when done
Connection
Tree Chart
Exit :
What organisms are
producers in the food web
and how do you know?
March 16, 2015
AGENDA
Objective 8.11 A
I can describe
relationships as they
occur in food webs by
reading and writing
while completing notes.
1. Starter
2. Practice
3. Notes
4. Connection/Exit
Table of Contents
Title/ Topic
My
3/3
CBA Review
197-198
3/5
Stellar Finger Prints
199-200
3/16
Food Webs/Chains
201-202
Practice
1. An animal the eats only meat. carnivore
herbivore
2. This organism makes nutrients decomposer producer
available for producers to
reuse by breaking down
decaying matter.
3. An organism that cannot makes producer
consumer
its own food.
4. An animal the eats only plants. omnivore
herbivore
5. A ______ ______ shows one
possible pathway for energy.
Food web
food chain
6. An organism that makes food
from the sun.
producer consumer
7. An animal the eats meat or
plants.
carnivore omnivore
8. The natural world that surrounds energy
an organism is called the
organism’s:
9. A ______ ______ shows many
possible pathways for energy.
environment
Food web food chain
10. The source of energy for almost sunlight
all life on Earth is
water
11. An example of a biotic factor in a waterfall
a tree
forest ecosystem is:
12. An example of a biotic factor in a temperature fish
pond ecosystem is:
13. An example of a producer is a:
moss
caterpillar
14. This is a/n ______.
15. In an energy pyramid, the
lowest level has the __?__
energy.
energy
pyramid
Food chain
most
least
Practice Answers
1.
An animal the eats only meat.
carnivore
herbivore
2. This organism makes nutrients available
for producers to reuse by breaking
down decaying matter.
decomposer producer
3. An organism that cannot makes its own
food.
4. An animal the eats only plants.
producer
consumer
omnivore
herbivore
5. A ______ ______ shows one possible
pathway for energy.
Food web
food chain
6. An organism that makes food
from the sun.
producer consumer
7. An animal the eats meat or
plants.
carnivore omnivore
8. The natural world that surrounds energy
an organism is called the
organism’s:
environment
9. A ______ ______ shows many
possible pathways for energy.
Food web food chain
10. The source of energy for almost
all life on Earth is
sunlight
water
11. An example of a biotic factor in a waterfall
a tree
forest ecosystem is:
12 An example of a biotic factor in a temperature fish
pond ecosystem is:
13. An example of a producer is a:
moss
caterpillar
14. This is a/n ______.
energy
pyramid
15. In an energy pyramid, the lowest most
level has the __?__ energy.
Food chain
least
The Sun
The sun is the primary source of
energy for most living things. The
energy flows through nature
through the food chain.
The Food Chain
There are three
main parts to
most food
chains
A. Producers-Plants
Producers (plants) are the primary source
of matter and energy in most food chains.
The sun provides energy to
the producers. Producers
use the sun to create their
own source of food or
nutrients.
Producers (and consumers)
also need water, air and certain
climates to survive.
B. Consumers- Animals
Primary consumers (herbivores) get
their energy and matter directly from plants
(producers).
Secondary consumers (carnivores)
get their energy and matter from eating the
primary consumers.
Tertiary consumers (carnivores)
get their energy and matter from
eating secondary consumers.
Omnivores eat plants and animals so they can be more than one level of consumer
(Humans belong in this category)
C. Decomposers-bacteria and fungi
Decomposers are mostly
bacteria or fungi like mold,
mildew and mushrooms. They
feed on the tissues of dead
organisms (producers or
consumers) and return or
recycle gases and nutrients to
the environment.
FOOD CHAIN
The flow of energy and matter in nature
nutrients
D. Food Chain:
• ONLY ONE
source of
food
• Less stable
E. Food Web:
• More than one
choice of food
• Several food
chains linked
together
• More stable
F. Energy moves through ecosystems in food
chains, passing from
photosynthesizes (producers)
to herbivores (consumers)
to carnivores(consumers)
creating a food web.
• G. The
energy that is
transferred
between
trophic
levels
transfers
only 10
percent of its
energy into
the next
trophic level
10% energy transfer
10% energy transfer
10% energy transfer
10% of the energy is passed on as biomass
90% is Lost as Waste
Or
Used for Reproduction of molecules of organism of next level
Trophic levels do
have limits.
For example:
Transfer of
energy from
level
to level is
inefficient
Exit
What
organisms
are
producers in
the food web
and how do
you know?
201
Food webs/Chains
3/16/2015
Starter: Pre-Test
Explain what you know about
each of the following
relationships:
producer/consumer
predator/prey
parasite/host
Practice
Relationship
Relationship
1
8
2
9
3
10
4
11
5
12
6
13
7
Food Webs/Chains
202
3/16/2015
Application:
Notes glue here when done
Connection
Tree Chart
Exit :
What organisms are
producers in the food web
and how do you know?