1. 1.4 Interdependence And Adaptation
Label the adaptations of the polar bear and explain how they help with survival:
What do the following compete for?
Animals
Plants:
Label the adaptations of the fennec (desert fox) and explain how they help with survival:
1.4 Interdependence
And Adaptation
How can human activity affect the distribution of organisms?
Name three adaptations of prey that deter predators.
Explain how climate change may lead to a short-haired arctic fox being more likely to survive than a long haired one.
Bacteria can be adapted to survive in extreme conditions. Explain how
Name the three pieces of equipment and state what they measure
How can the following living organisms be used as pollution indicators?
Lichens
Aquatic invertebrates
How is the cactus adapted to survive in the desert?
What is a pollution indicator? .
What is an extremophile?
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

2. 1.4 Interdependence And Adaptation
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
What do the following compete for?
Animals: food, mates, territory
Plants: light, space, water and nutrients from soil
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
1.4 Interdependence
And Adaptation
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 adaptations of prey that deter predators.
Thorns / poisons / warning colours
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
Bacteria can be adapted to survive in extreme conditions. Explain how
Tolerate: High salt concentration
High temperature
High pressure
Name the three pieces of equipment and state what they measure
maximum-minimum thermometer – temperature
Rainfall gauge – rainfall in set time period
How can the following living organisms be used as pollution indicators?
Lichens Monitor air pollution: higher population = better quality air (less SO2)
Aquatic invertebrates monitor water pollution – concentration of dissolved oxygen: ceratin species can tolerate very low O2
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
What is a pollution indicator?
Living organism that shows the level of pollution in an area through changes in it’s distribution or abundance.
What is an extremophile?
A microorganism that is adapted to live in extreme conditions.
How are desert animals adapted to cope with very cold nights? Burrows - insulation
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