Thursday, December 10, 2009

Does evolutionary theory apply to Plants? How? Explain please.?

Often times animal diversity is attributed to evolution. Can the same be said about all plant species?Does evolutionary theory apply to Plants? How? Explain please.?
Of course, all living things evolve. Mendel the father and discoverer of heredity did his experiments on peas.





All living things have DNA which carries the genetic code for the organism and the DNA can self replicate itself. During the self replication process small errors can occur called mutations. Most of these mutations are of virtually no consequence but a small number give rise to a variation in the genetic code which reflects in a change in one or more traits of the organism. Good traits that are beneficial have a tendency to be passed on to offspring and in this way, organisms evolve. Bad traits tend to die out as they are not beneficial and have a tendancy not to be passed on.





Plants evolved the greatest evolutionary change of all and that is sex. Sex is a mechanism whereby the genetic traits of 2 individual organisms are combined and in this way evolution is accelerated by maximising the effects of benificial traits.





Evolution is not a theory, it's a fact. Why do you think you never develop permanent immunity to colds and flu? It's because the virus evolves into a different strain that your anti-bodies don't recognise and you become re-infected. Viruses reproduce very rapidly and have many thousands of generations in a year and can evolve into virtually a different organism in a matter of months. Organisms that reproduce more slowly such as ourselves have fewer generations and therefore have a much slower evolution. However, even human's evolution can be seen. Over the last 30 to 40 years we have become noticably taller for instance.





Hope all this helpsDoes evolutionary theory apply to Plants? How? Explain please.?
Evolutionary theory applies to all living organisms. It works by a means of natural selection, which is like survival of the fittest, so that only the strongest of each generation survive and pass down the traits that make them strong to the next generation and so on and so on, so that each generation is a bit stronger than the previous one.
it's pretty much safe to say it can be applied to any living organism. oh and viruses too...since some would argue they aren't alive.

No comments:

Post a Comment

 
pigment