1. Chapter 22 Note taking guide and Organizer
Name_____________________________
Information is found on pages 415-419 in your book.
Producers
Producer-
Chemosynthesis-
_______________, which include plants and some kinds of protists and
bacteria, manufacture their own _____________.
Because __________________ capture ______________ and use it to
make _________________ molecules, they are called
____________________. Most producers are photosynthetic, so they use
solar energy to power the production of food.
Some autotrophic ______________ do not use _________________ as
an energy source.
These bacteria carry out ________________________, which means
they produce ______________________ by using energy from
___________________(non-living) molecules.
Productivity

2. Biomass-
What factors affect how much biomass an ecosystem can produce?
In _________________ (land) biomes, ________________,
____________________ and _____________________are the key factors.
In ___________________ (water) biomes, _________________ and
availability of ____________________ are key factors.
Consumers
Consumers-
Herbivores-
Carnivores-
Omnivores-
Detritivore-
Decomposers-

3. Energy Flow
Trophic level-
Whenever one ____________________ eats another, molecules are
metabolized and energy is ___________________.
One way to follow the pattern of ___________________ is to group
organisms in an _________________ based on how they obtain
____________________.
_____________________ are always on the first
____________________ level.
____________________ are on the second level and
______________________ on the third…etc.
Food chain-
Food Chains and Food Webs
Food web-

4. The bottom of _______________ diagrams is always the
_______________.
There are always more ________________ than _________________.
Essential Questions
• Why are autotrophs essential components of an ecosystem?
• What role do decomposers play in an ecosystem? Why is this role
important?
• How does a food chain differ from a food web?
• What would happen if you removed any organism from a food web or
chain? Be specific!