B2 Adaptations

Arctic foxes have anatomical adaptations that help reduce heat loss that is...
Thick fur that traps air for insulation
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Seals have anatomical adaptations that help reduce heat loss that is...
A thick layer of fat under the skin
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Why are animals with good insulation usually large with small ears?
Because decreasing the surface area to volume ratio helps with decreasing heat loss
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Two ways that animals change their behaviour to avoid the cold are...
1) Migrating long distances to warmer areas 2) Hibernating by slowing down all body processes
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What do penguins have that help reduce heat loss?
A counter-current heat exchange mechanism
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What happens in a counter-current heat exchange mechanism?
Warm blood entering flippers warms up cold blood leaving which stops it cooling the body
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Example of a biochemical adaptation...
Antifreeze proteins their cells
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Camels have anatomical adaptations that help increase heat loss that is...
Having little hair on the underside of their bodies
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Why are animals that live in hot areas are usually smaller with larger ears?
Because increasing the surface area to volume ratio helps with increasing heat loss
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Two ways that animals change their behaviour to lose more heat are...
1) Panting 2) Licking their fur
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To reduce heat gain, animals may...
Seek shade during the hotter hours around the middle of the day
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How do camels survive in dry conditions?
They can produce very concentrated urine so they can still survive with
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How do cacti survive in dry conditions?
Their leaves are spines so less water is lost and their deep roots can store water in the stem
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What are organisms that can survive in hot conditions called?
Extremophiles
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Why can some bacteria live in hot springs?
They have enzymes that don't denature at temperatures as high as 100 degrees celsius
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What is a specialist?
Organisms that are well adapted to living in specific habitats (but find it hard to live elsewhere)
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What is a generalist?
Organisms that can live in several habitats
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Example of a specialist...
Polar bears
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Example of a generalist...
Rats (will lose to specialists in certain habitats)
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Other cards in this set

Card 2

Front

A thick layer of fat under the skin

Back

Seals have anatomical adaptations that help reduce heat loss that is...

Card 3

Front

Because decreasing the surface area to volume ratio helps with decreasing heat loss

Back

Preview of the back of card 3

Card 4

Front

1) Migrating long distances to warmer areas 2) Hibernating by slowing down all body processes

Back

Preview of the back of card 4

Card 5

Front

A counter-current heat exchange mechanism

Back

Preview of the back of card 5
View more cards

Comments

/Lucas/Austin/

Hi, this is really helpful. Thanks for your help

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