?

As we know that, Active immunity is achieved after immune system is acted upon by antigens.

ut my question is- Why some vaccine provide lifetime immunity (like T.B., smallpox, chickenpox), and others provide for limited time (like- tetanus, rabbies etc).

Do the memory cell for different antigen have different life span or something ?

So what should I do to bring that possession back.

Now it seems so, bad to me when there is no orange color band below my name.

LOL, really.

help somebody !

Google offers such a best search results that everyone uses, its search almost everywhere in my city all net parlor and my friends have google as home page, most of them use google chrome and so so.

But the intresting thing is ? Here on Y! answers, i find some answeres with comment and source saying :- :" TRY GOOGLING IT "

LOL, its funny that on same page yahoo has provided with search bar, but then too people open a new tab and google it .

what is that speciality that makes people do this ?

do yahoo workers also use google search when they need something very very important on net ??

B Honest okay !!

Please explain in detail. I wanna ask more but the batrey is over so that much only.

I play age of empires on Game Ranger, but my friends use words like Nope NEWAS, LAMAO, IMAO, BKC, BC. could anyone please tell their meanings or full forms. ?

I really need them to understand my friends.

I had made an account on sociel natworking site orkut, but now i wanna delete it urgently, but i forgot my id and password both, only thing i know is my ORKUT URL.

Then please suggest any way to delete my account.?

I really need it, URGENT.

Help me.

Tell the names of the favorite things of urs in the above feilds..........!

I am polling which is the most popular and most lovable in these categouries.

Please name the favourite multiplayer gaming client also.

Thanks to for helping in the survey.

(^_-) the one eyed dude.

I currently use " logMe in HAMACHI " and " game ranger ".

But they support only few perticular games. so, I want A software which support all games and works with high pings also, by which we can play any game with our friend for free. and fast.

Please.

If you have the link then give or just tell the name.

TORRENT OF IT WILL ALSO DO, but it should be free.

Thanks.

Have you played " tank racer ".

In That game we can shoot the tanks which are in race with us, and racing also. thus it makes me enjoy.

Please tell the name of that game, in which we can shoot the vehicle we are racing with.

Provided it should be only racing game, not any mission or strategy game.

I want racing+shooting that opponents.

Please name such, and also give link to its detail, or u give details only.

Some one told this to my friend.

Is it something bad, really or a praising word.

Explain

I think yahoo is the real obeying site.

I asked and it changed within two days.

what do you comment on it.

Do you like the new style, and the functionality.

" ACCORDING TO ME ITS EASY, AND MORE EFFICIENT TO BROWSE NOW."

iT'S MUCH BETTER.

Comment your opinion.!

Give links of those answers which were give best by you, and are reallly giving knowledge, and clereing the concepts.

Building the knowledge of the feild.

In short, really best.

Give it.

I want best discriptive, doubt clearing, and knowledgable answer links.

Give somethng which will increase the knowledge of BIOLOGY.

It should be exausting, and really, intresting.

..

.

like "" A LOT OF KNOWLEDGE AT ONE PLACE ""

My best answer link is :- http://answers.yahoo.com/question/index;_ylt=ArCb2...

give yours like this.

really nice only.

Hey please answer more, as it is the dose of four days for me.

5 movie daily.

u gave 15 names = 3 days all over.

now, total 2 answers only so 3*2= 6 days only.

so please answer, and give more names, at least for 2-3 months It would finish.

-I believe, friends are always for help, and to help.)***

I am an addict to movies.

so, fulfill my needs, or i will die.

Don't let your friend " DIE."

I watch 4-6 movies daily, so i need more beautiful, and fantastic ANIMATED movie names.

they should be really best.

YOU MAY TELL THE MOVIE YOU LIKED THE MOST.

THAT MUST BE REALLY GOOD.

At least 15, better if u also give their pictures or explaination, short story link.

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I like movies and so i watch 4-6 movies daily, and i am finished with all the names i had.

Please suggest few GOOD and really best ones.

At least give best 15, or more if u have.

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I like movies and so i watch 4-6 movies daily, and i am finished with all the names i had.

Please suggest few GOOD and really best ones.

I wand best 15 or more HROROR movie name so, that I can watch.

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I like movies and so i watch 4-6 movies daily, and i am finished with all the names i had.

Please suggest few GOOD and really best ones.

Don't list, SAW, Haloween, Hills have eyes I have watched them.

It would be more better if you give their picture links or some matter.

Thanks

friends.

___________________________________________________-Yourfriend.

@.p+

Please poll, and also tell why.?.

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10 Points are not easy.

Explain the difference first, and then please explain me, which region of the pancreas is hormone secreting, and which region is enzyme secreting.

Please name the cells also which are involved in this secretion.

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Also give the proof, in support of ur answer.

don't think i am rude, but this is my way of talking.

If its bad I will try to be polite.

We know, that the world now is, very bad and all there is black things, black hearts.

So what is the criteria, or what are the qualities(MINIMUM) which one has, than he/she may be called as a good, person in the world.