Biology; Chemistry; Physics: Post your doubts here!

[Nabeel.Ahmad]

i just wonder about those who got a distinction, dont they make such mistakes

They don't.

 

[black widow]

How do i master Biology? .-.

I seriously suck at it. Should i read the whole book once, thoroughly? How long should that take?

Biology is easy, just make sure u go through the entire book at least once, and then like Chem, solve past papers
Bio is lengtheir than Chem, so it will take u like 3 days more than it took u Chem, depending on the frequency of ur studying

 

[black widow]

They don't.

they are making me jealous now
i wonder how Suhail Idrees got 7 distinctions

 

[funky brat]

How do i master Biology? .-.

I seriously suck at it. Should i read the whole book once, thoroughly? How long should that take?

Read the book and don't even skip a word. Solve the papers and read the examiner reports and see what creates problem. Note down your weaker areas and re-consult the book.

 

[funky brat]

the others were simple
i found 5 to be very technical
could u tell me about the last MCQ, about the natural selection, how is it C?

See the definition of Natural Selection. The species are adapted in such a way that they could fit in the environment and survive. So the first option does not make any sense. It does not matter whether dogs are friendly to humans or not. Apart from this grapes that contains no seeds and onions with a pleasant taste is an example of artificial selection like hybridization etc in which you interbreed the favourable species. The last and the correct option is mosquitos that are resistant to pesticides. Of course mosquitoes are not welcomed by anyone and insecticides are used to kill them but still they naturally develop resistant against it.

 

[Nabeel.Ahmad]

they are making me jealous now
i wonder how Suhail Idrees got 7 distinctions

Suhail Idrees? Who is he? When did that happen? :O

 

[black widow]

Suhail Idrees? Who is he? When did that happen? :O

you dont know
he was a student of LGS Kent Branch
he was told he got a single distinction, and he got crazy. He distributed mitai around the school. In the night, at 12:00, he got a call from the principal and was told that he had actually got 7 distinctions!
His name is even in the prospectus of LGS.
He is currently studying in the University of Cambridge

 

[black widow]

See the definition of Natural Selection. The species are adapted in such a way that they could fit in the environment and survive. So the first option does not make any sense. It does not matter whether dogs are friendly to humans or not. Apart from this grapes that contains no seeds and onions with a pleasant taste is an example of artificial selection like hybridization etc in which you interbreed the favourable species. The last and the correct option is mosquitos that are resistant to pesticides. Of course mosquitoes are not welcomed by anyone and insecticides are used to kill them but still they naturally develop resistant against it.

oh i see thnx
which ones did u get wrong?

 

[Nabeel.Ahmad]

you dont know
he was a student of LGS Kent Branch
he was told he got a single distinction, and he got crazy. He distributed mitai around the school. In the night, at 12:00, he got a call from the principal and was told that he had actually got 7 distinctions!
His name is even in the prospectus of LGS.
He is currently studying in the University of Cambridge

Which year did he appear in?

 

[black widow]

Which year did he appear in?

i don't know

 

[Nabeel.Ahmad]

i don't know

I don't find the proof of his 7 distinctions anywhere on google. I think it's not possible.

 

[black widow]

I don't find the proof of his 7 distinctions anywhere on google. I think it's not possible.

http://www.interface.edu.pk/students/Jan-11/University-of-Cambridge-International-Exams-results.asp
read the 13th para and down

 

[Adeena]

no they don't
they are non-living, and instead have a nucleic acid inside them

Viruses can contain DNA.They have either DNA or RNA

 

[Shahroze Ahmed]

Does anyone know any site where I can get O level past papers before the year 2002?

 

[Nabeel.Ahmad]

http://www.interface.edu.pk/students/Jan-11/University-of-Cambridge-International-Exams-results.asp
read the 13th para and down

That tells about his 4 distinctions in; Biology, Business studies, Maths, Physics.

 

[black widow]

That tells about his 4 distinctions in; Biology, Business studies, Maths, Physics.

i think he got 6
he has one in Add Maths as well, and i think Maths

 

[Nabeel.Ahmad]

i think he got 6
he has one in Add Maths as well, and i think Maths

Wow.

 

[black widow]

Wow.

he sure is one piece of work
and it gets even wieder, when i asked a friend of mine of the same branch that was he a bookworm, and he was like no he used to engage in class fun as well, as got just good grades in class

 

[Nabeel.Ahmad]

he sure is one piece of work
and it gets even wieder, when i asked a friend of mine of the same branch that was he a bookworm, and he was like no he used to engage in class fun as well, as got just good grades in class

Yeah. It's not necessary that book-worms succeed. That's the whole point of this.
There are bigger things, more powerful, more unimaginable that have a role in determining stuff like this. Luck, too.

 

[funky brat]

oh i see thnx
which ones did u get wrong?

The one asking about breathing in thing, I could not figure out the internal or external intercoastal muscles and the one on virus.