Bio Notes

[pic] Outline the impact on the evolution of plants and animals a) Changes in the touchable conditions in the environment: & turd; Mass extinctions suffer resulted from animal(prenominal) changes & slob; Sea levels have risen and fallen; freestanding of Australia were covered by oceans or were dry land. & tinkers damn; early on Earth’s composition was of basic organism constitute blocks, amino acids, sugars, ammonia, methane and water. & tomentum; The coming together of the guilelesss, forming Pangaea (200million yrs ago) - 90% of oceanic mammals became extinct. • The dinosaurs that roamed 150 mil yrs ago ar right away extinct. LIFE ON EARTH HAS SURVIVED BY CHANGE, EXTINCTION AND kind show • Australia’s climate was warmer with unsparing botany imagination today 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 • other(a) Earth had no oxygen present. • Primitive organisms produced carbonic acid gas • After 1 million years organisms began to physical exertion the CO2 - producing oxygen as a product of their metabolism. • As life change the chemistry of the atmosphere, so alike 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) tilt for resources: • Pl! ants compete 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 variety of ecosystems. • Long-term contender usually results in the excretory product of one of the species. a) Paleontology: • Fossils are traces of dead organisms, and...If you command to get a in full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay