Label the adaptations of the polar bear and
Label the adaptations of the polar bear and explain how they help with survival: What do the following compete for? Animals Plants: Name three adaptations of prey that deter predators. Bacteria can be adapted to survive in extreme conditions. Explain how How can human activity affect the distribution of organisms? What is an extremophile? Explain how climate change may lead to a short-haired arctic fox being more likely to survive than a long haired one. Name three pieces of equipment and state what they measure How is the cactus adapted to survive in the desert? How can the following living organisms be used as pollution indicators? Lichens Aquatic invertebrates Label the adaptations of the fennec (desert fox) and explain how they help with survival: What is a pollution indicator? . How are desert animals adapted to cope with very cold nights? Many factors can cause environmental change. Give an example of A living factor A non-living factor
Label the adaptations of the polar bear and explain how they help with survival: • Small surface area to volume ratio – minimizes heat loss • Small ears / nose • Thick fur – insulation • Thick layer of body fat – insulation • Waterproof fur – reduce heat loss from evaporation when wet • White - camouflage Name three adaptations of prey that deter predators. Thorns / poisons / warning colours Bacteria can be adapted to survive in extreme conditions. Explain how Tolerate: High salt concentration High temperature High pressure How can the following living organisms be used as pollution indicators? Lichens Monitor air pollution: higher population = better quality air (less SO 2) Aquatic invertebrates monitor water pollution – concentration of dissolved oxygen: ceratin species can tolerate very low O 2 What is an extremophile? A microorganism that is adapted to live in extreme conditions. What do the following compete for? Animals: food, mates, territory Plants: light, space, water and nutrients from soil How can human activity affect the distribution of organisms? • Destroy an animal’s food source or habitat – building, chemicals, farming • Introduction of new competing species • Global warming Name three pieces of equipment and state what they measure maximum-minimum thermometer – temperature Rainfall gauge – rainfall in set time period What is a pollution indicator? Living organism that shows the level of pollution in an area through changes in it’s distribution or abundance. How are desert animals adapted to cope with very cold nights? Burrows insulation Label the adaptations of the fennec (desert fox) and explain how they help with survival: • large surface area to volume ratio – increases heat loss • Large ears - more heat loss • thin fur – increase heat loss • Sandy colour - camouflage Explain how climate change may lead to a short-haired arctic fox being more likely to survive than a long hairde one. Temperature is increasing Short haired fox able to lose heat better so less likely to overheat Short haired fox more likely to survive and pass genes on How is the cactus adapted to survive in the desert? • roots widespread– collect water from a large area • Roots deep – collect water because surface likely to dry out quickly • No leaves – reduce surface area from which water can be lost • Stem able to swell – store water Many factors can cause environmental change. Give an example of A living factor New competitor eg grey squirrel A non-living factor Change in temperature or rainfall
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