Trophic levels

Open Ended

What would happen to the biological community in the savanna (where lions live) if scientists put sabertooths there?

Trophic Levels

​SWBAT: Discuss ways in which organisms compete for both Biotic and Abiotic resources

Trophic levels

is the position an organism takes in the ​food chain

​PRODUCERS

​Producers are the first level in the trophic system.

They make their own food by the energy of the sun.

They do not need any other organism to be fed.

​Primary Consumers

• second trophic level

• They eat primary producers

• Ex: Caterpillars eat leaves

​Secondary Consumers

• largely carnivores that feed on the primary consumers or herbivores

• 3rd Trophic levels

​Tertiary Consumers

• Those that eat Secondary consumers

• Large predators

TERMS

• Biomass- the total quantity organisms in an area.

• Scarcity- Short supply (Very little of)

• Abundance-Very large quantity (there is a lot of)

​Decomposers

• Decomposers are organisms that break down dead or decaying organisms

• perform a valuable service as Earth's cleanup crew

Multiple Choice

Who makes their own food?

• The Sun

• Producers

• Consumers

• Decomposers

Match

Match the following

• Producers

• 1 consumer

• 2nd Consumer

• Tertiary consumer

Plants

Rabbit

Snake

Hawk

• Plants

• Rabbit

• Snake

• Hawk

Reorder

Reorder the following from sun to tertiary consumer

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Fill in the Blanks

Open Ended

The frog would be considered in what trophic level?

Open Ended

In this case, the Snake is a predator or a Prey?

Open Ended

The bird would be at what level in the trophic level? What percentage of energy will it receive from the snake?

consumers- eat food

vs

producers-make own food

Open Ended

The spider is considered a consumer or producer?

​Turn your paper.

Begin IP

DRAW where they correspond:

Sun

Producer

primary consumer

2nd consumer

3rd consumer....

​exit ticket