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The food chain below shows the transfer of energy in an ocean bay.

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Presentation on theme: "The food chain below shows the transfer of energy in an ocean bay."— Presentation transcript:

1 The food chain below shows the transfer of energy in an ocean bay.
Sun Sea urchin Crab Seagull Phyto-plankton

2 1. Identify the tertiary consumer in this food chain, and defend your answer.
Sun Sea urchin Crab Seagull Phyto-plankton

3 2. Explain why phytoplankton are located at the base of this food chain. Use scientific vocabulary in your answer. Sun Sea urchin Crab Seagull Phyto-plankton

4 a. the number phytoplankton b. the number of crabs
3. A group of sea otters migrates into the bay and begins to eat the sea urchins. Predict how this will effect: a. the number phytoplankton b. the number of crabs Sun Sea urchin Crab Seagull Phyto-plankton

5 4. Assuming the phytoplankton have 500 calories of available energy:
a. state how much energy the seagull has b. explain why there is only a 10% transfer of energy in this food chain Sun Sea urchin Crab Seagull Phyto-plankton

6 5. The organisms in this hydrothermal vent ecosystem live in total darkness. Explain why a food web still exists here, even though there is no sunlight to power it. Use SCI VOCAB.

7 6. List all the herbivores in the food web below (3), and defend your answer.
Coyote Hawk Scorpion Tarantula Rattlesnake Desert tortoise Beetle Deer Kangaroo rat Joshua tree Cacti Blue manzanita

8 7. Identify the quaternary consumer in the food web below, and defend your answer.
Coyote Hawk Scorpion Tarantula Rattlesnake Desert tortoise Beetle Deer Kangaroo rat Joshua tree Cacti Blue manzanita

9 8. Identify the omnivore in the food web below, and defend your answer.
Coyote Hawk Scorpion Tarantula Rattlesnake Desert tortoise Beetle Deer Kangaroo rat Joshua tree Cacti Blue manzanita

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