Scott Hill
Blueprint Of Life
1. Evidence of evolution suggests that the mechanisms of inheritance, accompanied by selection, allow change over many generations
* Outline the impact on the evolution of plants and animals of:
- Changes in physical conditions in the environment
- Changes in chemical conditions in the environment
- Competition for resources
Physical Conditions | Chemical Conditions | Competition for resources | Change in physical conditions such as:- Temperature- Wind conditions- Availability of water | Chemicals that can affect the evolution of species:- Oxygen- Carbon Dioxide- pH- Salts | Competition for resources between species for:- Food- Water- Habitat- Mates- Results in the elimination of a competing species or the evolution to occupy different niches/ resources | E.G Ancient KangarooIncreased aridity led to a decrease in rainforests and an increase in open woodlands and grasslands as the Australian environment went from cool and wet to hot and dry. This change in physical environment led to the evolution of the Modern day Kangaroo from the Ancient KangarooAncient Kangaroo: small in size, generalized molarsModern Day Kangaroo: large in size, eats grasses using high crested molar teeth | E.G Copper MiningCopper mining can release wastes into the surrounding areas and these wastes can be toxic and kill many plants. If a plant has natural tolerance to waste mineral (e.g. copper tolerance), then it will survive, reproduce and pass on this favourable trait | E.G Fruit Fly Species have evolved to different types of fruit trees. Possible if different flowering and fruit times on each tree type for breeding cycles in the fruit fly can eventually lead to two distinct species (different fruit fly for each fruit tree). Specialise on slightly different resources to avoid direct competition |
* Describe, using specific examples, how the theory of evolution is supported by the following areas of study:
- Paleontology, including fossils that
1. Evidence of evolution suggests that the mechanisms of inheritance, accompanied by selection, allow change over many generations
* Outline the impact on the evolution of plants and animals of:
- Changes in physical conditions in the environment
- Changes in chemical conditions in the environment
- Competition for resources
Physical Conditions | Chemical Conditions | Competition for resources | Change in physical conditions such as:- Temperature- Wind conditions- Availability of water | Chemicals that can affect the evolution of species:- Oxygen- Carbon Dioxide- pH- Salts | Competition for resources between species for:- Food- Water- Habitat- Mates- Results in the elimination of a competing species or the evolution to occupy different niches/ resources | E.G Ancient KangarooIncreased aridity led to a decrease in rainforests and an increase in open woodlands and grasslands as the Australian environment went from cool and wet to hot and dry. This change in physical environment led to the evolution of the Modern day Kangaroo from the Ancient KangarooAncient Kangaroo: small in size, generalized molarsModern Day Kangaroo: large in size, eats grasses using high crested molar teeth | E.G Copper MiningCopper mining can release wastes into the surrounding areas and these wastes can be toxic and kill many plants. If a plant has natural tolerance to waste mineral (e.g. copper tolerance), then it will survive, reproduce and pass on this favourable trait | E.G Fruit Fly Species have evolved to different types of fruit trees. Possible if different flowering and fruit times on each tree type for breeding cycles in the fruit fly can eventually lead to two distinct species (different fruit fly for each fruit tree). Specialise on slightly different resources to avoid direct competition |
* Describe, using specific examples, how the theory of evolution is supported by the following areas of study:
- Paleontology, including fossils that