B2E

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  • Created by: ellxe
  • Created on: 19-05-16 09:36
What are adaptations?
Features that organisms have to make them better suited to their environment
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Why are adaptations good?
Better at competing for resources meaning theyre more likely to survive, reproduce, and pass on their adaptations
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What are specialists?
Organisms that are highly adapted to survive in a specific environment (e.g. giant pandas)
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What are generalists?
Organisms that are adapted to survive in a range of different habitats (e.g. black rats)
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In a habitat where they are stable, who will out-compete? (specialists or generalists)
Specialists as theyre better for the specific conditions
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In a habitat where the conditions change, who will out-compete? (specialists or generalists)
Generalists as they are adapted to a range
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What are organisms called who are adapted to extreme conditions? (e.g. low/high temp, low/high pH)
Extremophiles
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What adaptations can help in cold environments?
Thick coat/layer of blubber, large size and compact body shape, counter-current heat exchange systems
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Why do large organisms lose less heat?
They have a smaller surface area to volume ratio
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What is a counter-current heat exchange system?
Blood flowing in opposite directions pass close together, allowing heat to transfer between them meaning cold blood doesnt go anywhere else
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What other adaptation can you have to the cold?
Behavioural adaptations. (Migrating, hibernating and huddling)
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What behavioural adaptations can reduce heat gain?
Staying in the shade or underground, be active at night, bathing in water
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What anatomical adaptations can you have to the heat/
Small (large surface area to volume ratio), large thin ears, fat in just one part of the body (e.g. camels hump)
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How do plants and animals adapt to living in dry areas?
Desert plants have a small sa:vol, have a thick waxy layer, spines not leaves, store water and extensive roots to reduce water loss. Animals have specialsied kidneys, no sweat glands, stay underground.
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Other cards in this set

Card 2

Front

Why are adaptations good?

Back

Better at competing for resources meaning theyre more likely to survive, reproduce, and pass on their adaptations

Card 3

Front

What are specialists?

Back

Preview of the front of card 3

Card 4

Front

What are generalists?

Back

Preview of the front of card 4

Card 5

Front

In a habitat where they are stable, who will out-compete? (specialists or generalists)

Back

Preview of the front of card 5
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