B2 Adaptations 5.0 / 5 based on 1 rating ? BiologyAdapting to the cold, Adapting to hot dry conditions, Specialists or generalistsGCSEOCR Created by: Nicole10Created on: 23-11-15 21:55 Arctic foxes have anatomical adaptations that help reduce heat loss that is... Thick fur that traps air for insulation 1 of 19 Seals have anatomical adaptations that help reduce heat loss that is... A thick layer of fat under the skin 2 of 19 Why are animals with good insulation usually large with small ears? Because decreasing the surface area to volume ratio helps with decreasing heat loss 3 of 19 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 4 of 19 What do penguins have that help reduce heat loss? A counter-current heat exchange mechanism 5 of 19 What happens in a counter-current heat exchange mechanism? Warm blood entering flippers warms up cold blood leaving which stops it cooling the body 6 of 19 Example of a biochemical adaptation... Antifreeze proteins their cells 7 of 19 Camels have anatomical adaptations that help increase heat loss that is... Having little hair on the underside of their bodies 8 of 19 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 9 of 19 Two ways that animals change their behaviour to lose more heat are... 1) Panting 2) Licking their fur 10 of 19 To reduce heat gain, animals may... Seek shade during the hotter hours around the middle of the day 11 of 19 How do camels survive in dry conditions? They can produce very concentrated urine so they can still survive with 12 of 19 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 13 of 19 What are organisms that can survive in hot conditions called? Extremophiles 14 of 19 Why can some bacteria live in hot springs? They have enzymes that don't denature at temperatures as high as 100 degrees celsius 15 of 19 What is a specialist? Organisms that are well adapted to living in specific habitats (but find it hard to live elsewhere) 16 of 19 What is a generalist? Organisms that can live in several habitats 17 of 19 Example of a specialist... Polar bears 18 of 19 Example of a generalist... Rats (will lose to specialists in certain habitats) 19 of 19
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