Download Who is the producer in this food web?

Which of the organisms in the above
diagram represents the
Tertiary Consumer?
Use the diagram
on the right to
answer the
following
questions:
Who is the producer in this food web?
Algae
How many
different
food
chains 6
involve
Squid?
What are they?
algae  small animals  squid
 elephant seal  killer whale
algae  squid  killer whale
algae  squid  leopard
seal  killer whale
algae  small animals  squid 
elephant seal  leopard seal 
killer whale
algae  small animals  squid  killer whale
algae  small animals  squid  leopard seal  killer whale
Each organism in a food chain
represents a feeding step, or
Tropic Level, in the passage of
energy and materials
Use the sheet at
your table to
illustrate an example
of an ecological
pyramid by placing
each food chain card
at the appropriate
trophic level on the
Ecological Pyramid.
Copy the
ecological
pyramid of
energy you
created into
your biology
notebook.
Create a table like the one
above in your biology
notebook. Using your
filled-in pyramid, write
the name of the organism
on each food chain card in
the appropriate column in
the table.
Ecologists often
illustrate the flow
of energy through
ecosystems with an
energy pyramid.
Only
about 10% of the
energy at any tropic
level is transferred
to the next tropic
level.
Much of the energy
obtained from food
(90%) is used for
metabolism or lost to
the environment in the
form of heat.
In the diagram above, which organisms
are considered primary consumers
In the diagram above, which organisms
are considered secondary consumers
Which organisms are considered both
secondary and tertiary consumers?
Using what we
know about
energy, how much
energy would be
available to the
leopard seal using
this food chain if
algae begins with
250,000 units?
25
250
2,500
25,000
250,000
250
What about the killer whale? 25
What percentage (%) of energy is
available at each trophic level in the
above diagram?
Explain the 10% rule
of an ecosystem
using the information
from the ecological
pyramid and the
glossary.
Which example, a
food chain or a food
web, represents a
more realistic picture
of the flow of matter
and energy in an
ecosystem? Support
your answer.