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

What trophic level would the grasshopper be part of?

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