fu 2.0 / 5 based on 1 rating ? BusinessjghAll LevelsCCEA Created by: BaharekhCreated on: 21-06-15 15:38 How do arctic animals adapt to reduce heat loss? 1) Small surface area 2) Thick layer of fur/blubber 3) Camouflage 1 of 28 How do desert animals adapt to save water & keep cool? 1) Large surface area 2) Thin layer of body fat 3) Camouflage 2 of 28 Where do camels keep all their fat? Humps 3 of 28 How do desert plants adapt to live with little water? 1) deep roots to access underground water 2) Spines to reduce water loss 3) Small surface area 4 of 28 What do plants compete for? Light, space, water, nutrients 5 of 28 What do animals compete for? Territory, food, water, mates 6 of 28 What are 2 living factors of environmental change? 1) A change in numbers of predators 2) A change in numbers of prey 7 of 28 What are 2 non-living factors of environmental change? 1) A change in average temp 2) Change in average rainfall 8 of 28 How can air pollution be monitored? Looking at types of lichen that are sensitive to the concentration of sulphur dioxide in the atmosphere 9 of 28 What does lots of lichen & mayfly larvae indicate? Clean air 10 of 28 What do lots of rat-tailed maggots & sludgeworms indicate? Very high level of water pollution 11 of 28 What decreases as you go up pyramids of biomass? Energy & biomass 12 of 28 What is the main source of energy? Sun 13 of 28 In what conditions do microorganisms work best in? Warm & moist 14 of 28 What elements do plants take from the soil & air? Carbon, oxygen, hydrogen, nitrogen 15 of 28 What is the carbon cycle ‘powered’ by? Photosynthesis 16 of 28 How is CO2 removed from the atmosphere by? Green plants & algae 17 of 28 How is carbon returned to the atmosphere? When plants, algae & animals respire 18 of 28 What happens when plants, algae & animals die? Microorganisms feed on them 19 of 28 What is another way that CO2 is released back into the air? Combustion 20 of 28 What are 2 types of variation? Genetic & environmental 21 of 28 What are gametes? Sex cells which the offspring develops from 22 of 28 What does the nucleus contain? Genetic material in the form of chromosomes 23 of 28 How many chromosomes does the human cell contain? 23 pairs 24 of 28 What do chromosomes carry? Genes 25 of 28 What are different versions of the same genes called? Alleles 26 of 28 What is sexual reproduction? Male & female gametes combined to produce offspring containing a mixture of their parents genes 27 of 28 What is asexual reproduction? Involves one parent (cloning) 28 of 28
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