B2 Flashcards 0.0 / 5 ? BiologyAdaptations of organisms to their environmentGCSEOCR Created by: Eleanor.1Created on: 05-05-14 10:29 How do animals that live in the cold keep warm? By reducing heat loss and have anitomical adaptations. 1 of 19 Why do they have excellent insulation? To reduce heat loss. 2 of 19 Why do these animals have small ears? To reduce surface area to volume ratio. 3 of 19 How might animals avoid the cold? By changing their behaviour. 4 of 19 How do they do this? Migrating to warmer areas or hibernate. 5 of 19 What do penguis have to reduce heat loss? Counter-current heat exchange. 6 of 19 What might animals that live in cold climates have? Biochemical adaptations, such as antifreeze protiens in their cells. 7 of 19 To reduce heat loss, animals adapt in a number of ways: Anatomical and behavioural 8 of 19 Give an example of an anatomical adaptation Camals reduce heat loss by having very little hair on the underside of their bodies. 9 of 19 What is a behavioural adaptaion? Example: licking themselves or panting. 10 of 19 What do animals do to reduce heat gain? Change their behaviour. for example seek shade when hot. 11 of 19 How do organisms cope with dry conditions? They have behavioural, anatomical and physcological adaptations. 12 of 19 Give an example: Camals have concentrated urine so can survive with little water. 13 of 19 Another example: Cacti reduce water loss because their leaves have reduced to spines. 14 of 19 What are extremophiles? Organisms that survive in very hot conditions. 15 of 19 How can some bacteria live in hot springs? The have enzymes that do not denature at temperatures as high as 100°C 16 of 19 Why are some organisms called specialists? They are very well adapted to live in specific habitats and struggle to live elsewhere. 17 of 19 What are generalists? Organisms that can live in several habitats (they would lose to specialists in certain habitats). 18 of 19 What is an anotomical adaptation? What certain animals are made to do. 19 of 19
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