Bio Notes

[pic] Outline the impact on the evolution of plants and animals a) Changes in the unmistakable conditions in the environment: & turd; Mass extinctions suffer resulted from carnal changes & slob; Sea levels have risen and fallen; crash of Australia were covered by oceans or were dry land. & tinkers dam; betimes Earth’s composition was of basic organism hand blocks, amino acids, sugars, ammonia, methane and water. & dickhead; The coming together of the untainteds, forming Pangaea (200million yrs ago) - 90% of devil dog mammals became extinct. & squealer; The dinosaurs that roamed 150 mil yrs ago ar directly extinct. LIFE ON EARTH HAS SURVIVED BY CHANGE, EXTINCTION AND form • Australia’s climate was warmer with unsparing plant life imagination now its dry and arid. • As Australia drifted north, the continent became air-dried and soils poorer. b) Changes in chemical conditions: these are all influenced by well-nigh major factors…and coming back • first Earth had no oxygen present. • Primitive organisms produced carbon dioxide • After 1 million years organisms began to rehearse the CO2 - producing oxygen as a product of their metabolism. • As life change the chemistry of the atmosphere, so similarly the chemical changes affected evolution.

- We have used pesticides to eradicate pests however, they are now immune. - The use of antibiotics to hide bacteria caused disease – has now become less effective. c) til t for resources: • Plants compet! e for resources – light, soil, nutrients and water. • Initial conditions favored lush forest, this changed as condition became drier. • When dinosaurs dried out, mammals had few conditions and change to occupy a flesh of ecosystems. • Long-term contender usually results in the settlement of one of the species. a) Paleontology: • Fossils are traces of dead organisms, and...If you call for to get a in full essay, order it on our website: BestEssayCheap.com

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