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Laabri

OALH Pyramids of Biomass (year 7)

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Last updated about 5 years ago
18 Nsɛmmisa

Do Now

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Key Knowedge

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Recall Quiz:

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I Do

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Plenary

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

What is the name for an organism that makes its own food?

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2.

What is the name for an organism that hunts other organisms?

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3.

Describe the motion of a streamlined object

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4.

Name the equipment needed for chromatography

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5.

Calculate the rf value of an ink dot that moved 2cm when the solvent moved 10 cm

(Rf= distance solute travelled / distance solvent travelled)

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6.

Challenge: Name the kingdom this organism belongs too ‘Single celled organisms with no nucleus (e.g. bacteria).’

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7.

State the definition of Biomass.

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8.

Biomass can be lost due to:

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9.

Suggest two reasons why biomass is lost from a food chain

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10.

Biomass can be lost due to:

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11.

State the definition of Biomass

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12.

Suggest two reasons why biomass is lost from a food chain

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13.

Grass -> rabbits -> snakes -> hawk

100 pieces of grass (0.1kg)

10 rabbits (0.5kg)

3 snakes (1kg)

1 hawk (1kg)

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14.

Algae -> Krill -> Salmon -> Shark

32 pieces of Algae (0.5kg)

110 Krill (0.1kg)

7 Salmon (1kg)

1 Shark (5kg

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15.

Write a food chain for the following organisms: Grass, fox, rabbit

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16.

Make 2 food chains from the food web on the powerpoint:

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17.

Explain what would happen to the number of clown fish if the zooplankton were wiped out by a disease

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18.

Draw a pyramid of biomass for the following:

Dandelions x 10 (15kg each)

Rabbits x 5 (9kg each)

Fox x 1(3kg each)