1
Q
What do plants and animals compete for?
A
plants:
- light
- space
- water
- nutrients from soil
animals:
- food
- mates
- territory
2
Q
What are extromphiles tolerant to?
A
- high levels of sale
- high temp.
- high pressure
3
Q
How is the polar bear adapted to live in the Arcitic?
A
- white appearance - camouflage from prey
- thick layer of fat and fur - insulation
- small sa:v - minimize heat loss
- greasy coat - sheds water after swimming
- large furry feet - distribute load and increase grip on ice
4
Q
How are camels adapted to hot climates?
A
- large, flate feet - distribute weight on sand
- thick fur on top - shade
- thin fur everywhere else - maximise heat loss
- large sa:v
- loose little water through urination and perspiration
- tolerate temperatures upto 42
- slit like nostrils - keep sand out
5
Q
How are cacti adapted to hot climates?
A
- stems that can store water
- widespread root system - maximize water collection
- spines instead of leaves - (small sa) reduces transpiration
- spines also protect cacti from animals
