Biology 1B
- Created by: Shine.7
- Created on: 20-04-14 20:31
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- Biology 1B
- Adaptation
- extremophiles
- PREDATORS:warning colours/armour/produce poison.
- light/space/water/minerals (plants)
- +food/territory/mates(animals)
- Distribution changes: animals migrate
- Indicators: lichen:air poll/sulphur dioxide(lots=clean air) //mayfly:water poll/dissolved oxygen(in river=water clean)
- extremophiles
- BIOMASS// energy LOST EACH STAGE//not enough energy to support next 4/5stages
- CARBON CYCLE
- PHOTOSYNTHESIS absorb co2
- CO2 in air=burning F.F//detrius feeders respire(decay)/plant/animal respire
- PHOTOSYNTHESIS absorb co2
- Variation
- Genetic or Envirnomental
- SEXUAL(variation)//ASEXUAL
- 2parents/fusion/genetically diff.
- opposite!! Genetically identical
- CLONING
- PLANTS:cuttings/tissue culture
- embryo transplants(best animal/many same offsprings)
- adult cell cloning:Nucleus remove/Adult N added/electric shock
- embryo transplants(best animal/many same offsprings)
- PLANTS:cuttings/tissue culture
- Genetic engeneering
- CUT and PASTE
- eg. human insuline gene
- treat disease
- don't know long-term effects
- treat disease
- eg. human insuline gene
- G.M
- Gene therapy
- +yield of a crop/nutrients added/resistance to virus'
- allergies/reduce biodiversity/create new variety
- CUT and PASTE
- Natural Selection
- DARWIN:genes passed on.//better adapted=better chance of survival
- DIDNT AGREE: religious belief/no good explanation/not enough evidence
- LAMARCK:characteristic used a lot=will be more developed during its lifetime
- DARWIN:genes passed on.//better adapted=better chance of survival
- Adaptation
- MUTATION
- no effect but may produce useful characteristics= increase survival+reprodct.
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