Bellwork Thurs. 3-31-11

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Bellwork
1. Look at the 8 levels of organization on the back of your
notetaker from yesterday. Come up with your own real
life version for each level (see my example below- you can
use “Earth” )
Biosphere = Earth
Ecosystem = Rainforest
Community = trees, birds, and bugs in the area
Population = all of the toucans
Organism = a single banana tree
Tissue/Organ = A panther’s heart
Cell = A brain cell
Atom/Molecule = H2O
Energy Flow & Roles of
Organisms
(notes on lined paper)
Autotrophs
“Self”
“food”
Autotroph = organism that makes food
for itself (producer)
Talk to Your Partner
Based on the definition we just wrote
down, what are some examples of
autotrophs?
Autotrophs
“Self”
“food”
Autotroph = organism that makes food
for itself (producer)
-Ex: plants & some bacteria
Heterotrophs
“Different” “food”
Heterotroph = organism that eats other
organisms (consumers)
I must be a
heterotroph, since I
can’t synthesize
these!
Heterotrophs
“Different” “food”
Heterotroph = organism that eats other
organisms (consumers)
-Examples: animals, fungus, bacteria
Try this! (5 mins)
At your lab table:
Work as a group to quickly sort the cards &
use arrows to show which direction energy is
flowing
Example:
2 Big Categories of Organisms
Make a T-chart
Autotrophs/
Producers
Heterotrophs/
Consumers
There are two types of
autotrophs/producers
Autotrophs
1. Phototroph : use energy from sun to make
food (photosynthesis)
Autotrophs
2. Chemotrophs : use energy from chemicals
to make food
Ex- Bacteria in deep sea vents
There are many types of
heterotrophs
List as many types as you can
Hint: A cow is one type
Heterotrophs
1. Herbivores : eat ONLY plants
Heterotrophs
2. Omnivores : Eat BOTH plants & animals
Heterotrophs
3. Carnivores : eat ONLY meat
Heterotrophs
4. Scavengers: feed on dead organisms
• Ex. – Vultures, Shrimp, Mealworms!
Heterotrophs
5. Decomposers : Absorb dead
materials/waste & break them down into
fertilizers for plants
• Ex. – bacteria, mushrooms
Try this! (Part 2)
Add organism terms to the cards at your lab table
Example:
Omnivore
Closure
1. On back of notes- Draw a
simple food chain for your
critter, with at least 5
organisms.
2. Label each organism with
vocab- herbivore, phototroph,
etc.
3. When finished, put together
your critter & drop it off in the
front basket
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