Question

Part 2 - Food Webs:
Draw the following chart:

Sixth-Level Consumers
Fifth-Level Consumers
Fourth-Level Consumers
Third-Level (Tertiary) Consumers
Second-Level (Secondary) Consumers
First-Level (Primary) Consumers
Producers

- Arrange the names of the organisms on the chart to show how a food web on a coral reef would be organized. Place producers in the area marked for producers, etc. If an organism could occupy more than one level, put that name between levels or make a duplicate copy of the name and place in both levels.
- Draw arrows showing the flow of energy from the organism being consumed to the organism doing the consumption.

1. • barracuda
   • clam
   • clown fish
   • coral
   • coralline algae
   • crab
   • jellyfish
   • octopus
   • parrotfish
   • phytoplankton
   • sea star
   • sea turtle
   • sea urchin
   • shark
   • shrimp
   • snails
   • spiny lobster
   • squid
   • stingray
   • zooplankton

Answer 1

Sixth level consumers

Shark

↑

Fifth level consumers

Barracuda

↑

Fourth level consumers

↑

Third level consumers

Clown fish, octopus, parrotfish, stingray

↑

Second level consumers

Sea urchin, clown fish, crab, jellyfish, octopus, parrotfish, sea star, spiny lobster

↑

First level consumers

Zooplankton, clam, corals, sea turtle, shrimp, snails

↑

Producers

Phytoplankton, coralline algae

Upward arrow shows that energu flows from the organisms at lower trophic levels to the organims at higher trophic level. Also, there is a decrease in energy as it flows through different trophic levels.

To simplify it, first arrange organims of lower trophic levels.

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