Blueprint of Life Tips

[mitochondria]

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Yay! First one to post sorry to disappoint you guys.. the tips are not up and done yet.. mee am just scabbing this first place this is to compensate my loss in Bio.. came third just don't understand why, i came first in all assessments since and including the half yearly and still cam blanky third.. anyways.. just to make this look better.. i'll put in one or two tips..

1. Understand what is natural selection and changes in the environment can lead to the extinction of existing species and the rise of new species.

2.Physical changes: maybe caused by continential drift over a long period of time or by the destruction of natural habitats such as rain forest by human activities, e.g. temperature, shelter, wind, sunlight.. etc. Chemical changes pH of soil, salinity, gases (e.g. O2 CO2) concentrations in the atmosphere... etc.


Important terms: natural selection, palaeontology, biogeography, comparative embryology, comparative anatomy, biochemistry



okay.. that's too, more to come my dad just woke up.. lucky me.. he didn't know i'm still awake

[xiao1985]

Also on pt 1:

palaeontology: study of fossils. the discovery of transitional forms of fossils support Darwin's theory of evolution. Transitional forms: archaeopteryx (those giant flyin birdish dinosaur which u c every day in sci fi movies such as jurassic park) exhibiting both a bird (have wings) and a reptile (bonie tails). Hence natural selection (variations with the most superior characteristics got to pass it to their offspring, namely archaeopteryx with the wings)

biogeography: study of orgainism from different places on earth. when they are separated by the tectonic plates movement, they evolve divergently according to the different environment they went into.

comparative anatomy: mainly the pentadyctal limb structure between human, whales, bat and horse(or was it lion??). Similiar structure implied they have a common ancestor.

biochemistry: all organism on earth, regardless of species, genus etc, all have similiar chemical compositions in our bodies, also same biochemical processes whereby we obtain our energy from (with the exception of a few anaerobic bacteria, some of which feed on sulfur). Hence this implies that we all have a common ancestor.


lolz, there may be loads of mistakes and errors... so if ne one is dissatisfied, plz post here!!!

[xiao1985]

apparantly, i read somewhere, that lemark's theory of "spontaneous evolution" (not really sure wut is it called) is not really all bad..... it should be considered as a development, as it denies the creactionism, which prevails at the time...... twas after his pioneer work (or prolly not that pioneer) that the society start to think "ahhhhhhh ... (the rest of the thoughts have bein omitted for religious reasons) "

ne way, and along came darwin with his theory of evolution, which is really rejected (more like banned by law) at many places at the time (namely many states in usa). a sci teacher is trialed for teachin the students about darwin's theory of evolution.

and also, mitochondria, which school do u go to?? u sure give urself a very high standard!!! cuz i will be more than satisfied wif 3rd... apparently, i stuff up my bio pretty badly

[Survivor39]

lol. they are not tips! they are summary of the selected dot points!

Anyway, Another evidence to paeleontology beside what xiao1985 said is the Lobe fin fish. This organism suggests that reptile evolved from fish.

[bLu3_gRaSS]

My tip: don't study!!

I didn't study at all; no past exams no questions from the book, skimming through the book...i didn't do all that bad either

[emmy-lou]

yeah right! not study! my goodness i am studying my ass off and stil just scraping by! it is so wierd i love bio but hate my teacher so i seem to be doing poorly out of my own arrogance! man i soo regret that now.. any tips for understanding the whole course in the next three months?????

[Cab31]

It should make more sense when you have a chance to sit down and properly revise it all (before trials). As long as you're understanding most of the stuff, you'll be ok. The stuff you dont understand, or cant remember, write down in big letters on paper and stick them up round ur room. i guarentee by the HSC you'll remember it - and you'll have a lovely room full stuff you'll never need to know again!

[indimc]

nice advice cab 31, thanks

[jesster88]

Originally Posted by xiao1985

Also on pt 1:

comparative anatomy: mainly the pentadyctal limb structure between human, whales, bat and horse(or was it lion??). Similiar structure implied they have a common ancestor.

lolz, there may be loads of mistakes and errors... so if ne one is dissatisfied, plz post here!!!

umm u forgot commparitive embryology where the embryos of many species all look the same expecially mammals

[Kiarn]

what the hell is independent assortment and random segregation??

Yeh, I'm sure you did well

[cint]

when will your tips be up?! im desperate!!!!!!

[Survivor39]

Originally Posted by Kiarn

what the hell is independent assortment and random segregation??

Independent assortment is mendel's second law, which describe that the segregation of alleles at one gene occurs independently of the segregation of alleles at another gene.

Random segregation GENERALLY describes that during meiosis, the segregation of one homologous chromosome is independent of the segregation of another.

But this term is used loosely so don't get confused with Medel's first law of the segregation of alleles, that is, two alleles of ONE gene each pass into one gametes during meiosis

I hope this helps

[LuthienAdrianna]

Here's a tip that's working for me!

MAKE ALL YOUR NOTES AS YOU GO ALONG - make notes for each dot point and don't leave it to a week before trials. If you love Bio as much as I do, you should give it some time everyday - I do one hour Bio study a day (wish I could do more, but Chem and Maths are also crying for attention).

P.S. Is it weird that we totally ignored the stuff about evolution at the beginning of the syllabus and began our HSC course at Mendel?

[Lizzae]

Originally Posted by foofoo_16

hEY i have a Bio assign 4 'Blueprint of Life'...i gota show how an environmental change can lead to changes in a species! Has anyone done this before? if not does any one know what species i could do???

Try doing DDT (an insecticide) and the mosquito. It was introduced (it was introduced for other reasons too) as a way to kill mosquitoes once they'd discovered they were spreading Malaria. Talk about their eventual resistance to both DDT and DDE over time and the effects the inseciticide had on the environment (like build up etc)
Or about rabbits and myxomatosis...