You are What You Eat. Autotroph/producer : An organism that makes its own food. . Plants and some other organisms make food from sunlight energy (photosynthesis). Heterotrophs/consumers: Organisms that get energy directly or indirectly from plants. Types of heterotrophs:.
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Plants and some other organisms make food from sunlight energy (photosynthesis)
Organisms which feed only on other heterotrophs (animals). Examples: wolves, hawks, anteaters
Organisms which feed on both plants and animals Examples: humans, bears, robins, raccoons
Black rats are omnivores. They will eat grain, fruit, corn, insects and eggs.
Animals which feed on decaying organic matter (rotting plants and animals). Examples: earthworms, fungus, some bacteria
Mushrooms (right) and earthworms are decomposers
Animals which feed on other animals which are already dead (scavengers don’t kill their own prey). Examples: hyena, crows, vultures, ants.
Create a menu for the five categories of eaters. Your menu should include the various courses that you would find in a typical menu, like appetizers, main courses, specials, desserts, drinks…. You should also include selections for each kind of eater within each category.
Energy moves from the sun to plants to primary consumers (herbivores) to higher consumers (omnivores & carnivores).
Each link in a food chain is a trophic level.
Rotting fruitFly frog snake
Which organism is at the second trophic level?
Name the carnivores:
What kind of organism is a fly?
At which trophic level is the snake?
Can anyone in this chain be an omnivore?
Who is the highest order consumer in this chain?
Clover deer wolf
How many carnivores?
How many autotrophs?
Which is at the third trophic level?
At which trophic level is the herbivore?
Name the next link in the chain if the wolf dies and decomposes.
A food web shows all the different food chains in an ecosystem.
How many different food chains are in this web?
What kind of ecosystem would have a food web like this one?
Which predators have the most sources of food in this web?
What is at the beginning of each food chain in this web?
Is the Herring a herbivore, an omnivore or a carnivore?
How many food chains do you see here?
What would happen if the snails were eliminated from this web?
Source of energy for the energy pyramid is The Sun!
Energy is lost as it moves up the pyramid.
The pyramid is like climbing steps: Energy is lost as you move up the stairs
You have the most energy at the bottom
You have the least energy at the top
Because less energy is available to for the consumers at the top, there are less carnivores than plants.
Place the following species and terms in the correct location on the ecological pyramid: (This will be turned in)
2nd Trophic Level
3rd Trophic Level
1st Trophic Level
4th Trophic Level