Author Topic: Biology Paper 1 and 3 help HERE ONLY!!!  (Read 48446 times)

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #345 on: June 07, 2009, 10:33:09 am »
AHHH YESSS!!! Now it came back to me :D Thx a bunch you lil squirells!
no  problem papa squirell!!!!!!hehe

hahhah ahh MAMA squirell..thank you very much!!! hahahahah
Its good to laughhh in these stressful times **SIGH

Offline Aodian

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #346 on: June 07, 2009, 10:36:06 am »
Alright guys.. See ya'z im off.. Im not feeling too well.. puking + plae ghosts are the operative words here.. *BLUEK*
I'll be back in a few hours though.. wishing u guys all the best.. and Kick A** in BIO alright!

BIO FTW.. only a few more then it's summer!!!
Music is enough to last a lifetime, but a lifetime isnt enough for music..

ami tomake bhalobashi.. <3

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #347 on: June 07, 2009, 10:44:01 am »
Alright guys.. See ya'z im off.. Im not feeling too well.. puking + plae ghosts are the operative words here.. *BLUEK*
I'll be back in a few hours though.. wishing u guys all the best.. and Kick A** in BIO alright!

BIO FTW.. only a few more then it's summer!!!
'

Ur sickkk?? before the exam??? and whats plae?

Offline Aodian

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #348 on: June 07, 2009, 10:48:19 am »
Alright guys.. See ya'z im off.. Im not feeling too well.. puking + plae ghosts are the operative words here.. *BLUEK*
I'll be back in a few hours though.. wishing u guys all the best.. and Kick A** in BIO alright!

BIO FTW.. only a few more then it's summer!!!
'

Ur sickkk?? before the exam??? and whats plae?
yeah im always usually sick before an exam.. sorry typo.. wat i meant to say was Pale... take care!
Music is enough to last a lifetime, but a lifetime isnt enough for music..

ami tomake bhalobashi.. <3

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #349 on: June 07, 2009, 10:52:49 am »
Alright guys.. See ya'z im off.. Im not feeling too well.. puking + plae ghosts are the operative words here.. *BLUEK*
I'll be back in a few hours though.. wishing u guys all the best.. and Kick A** in BIO alright!

BIO FTW.. only a few more then it's summer!!!
'

Ur sickkk?? before the exam??? and whats plae?
yeah im always usually sick before an exam.. sorry typo.. wat i meant to say was Pale... take care!

BUT U KNOW EVERTHING!?!?!?!?

Offline Feva

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #350 on: June 07, 2009, 11:09:49 am »
wooo my last day of serious studying  ::)

then its just multiple choice... which isnt as hard :P

---

well, can anyone please explain:

Nitrogen Cycle step by step  :D
Menstrual Cycle  ;)

Thanks in advance!

+rep to everyone who helps  ;D

Offline 12345abc

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #351 on: June 07, 2009, 11:15:32 am »
ok some1 plz explain this- describe the path played by the nervous system to enable the person to experience the sensation of taste...and plz give any tips u have in describing nervous pathways...also,plz explain the nitrogen cycle!!!

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #352 on: June 07, 2009, 11:22:42 am »
N2 (in atmosphere- 78 %)
-
-
N2 -->NO3 (Symbiotic Nitrogen fixing bacteria-in leguminous plants-peas)
-
-N2 is also changed into protein for animals to eat- they die and defeacate
and purtifying bacteria (fungi- saprophyetes) turn N2 (from faecaes) into NH3
and with help of Nirtifying bacteria- NH3 is made into NO3.
AND THEN WE  HAVE NITRATES FOR THE PLANTS!! YAYYY but thats not all..

There are also Nitrogen Fixing bacteria who turn N2---> into NO3 (without all this fancy dafeacation stuff)

AND THEN there are the bacteria (that farmers hate) because they turn the valuable NO3 back into N2

Offline Feva

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #353 on: June 07, 2009, 11:27:03 am »
woo thanks shelbii <3

much luv x

+rep'd before u posted -.- well do again after 2 hours  :D

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #354 on: June 07, 2009, 11:28:17 am »
Wait a minute- thats not all!

Not tooo compicated..

0-4 days- lining breaks down (the bleeding)
4-13 days- uterus lining is built up again
13-28- uterus lining is maintained-awaiting embeddment of zygote

The days are different for everyone- but thats an approximate count.

Now, the hormones.
Oestogen- is to encourage the repair of the uterus lining
progesterone- maintains the lining

FSH and LH (dont know if u have to know it- but oh well)
Follicle Stimuating hormone + luteinizing hormone- to make the ovum

Hope it Helped!
oh and ovulation (when the little egg is realeased-) happens about the 13th day- when the uterus lining is built up
 
 

 

Offline goin4dakill

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #355 on: June 07, 2009, 11:29:39 am »
woo thanks shelbii <3

much luv x

+rep'd before u posted -.- well do again after 2 hours  :D

aww ur welcome Salman!!! :DDD Good luck
and i repped ya to. Just cuz..haha

Offline Kim

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #356 on: June 07, 2009, 11:32:50 am »
ok some1 plz explain this- describe the path played by the nervous system to enable the person to experience the sensation of taste...and plz give any tips u have in describing nervous pathways...also,plz explain the nitrogen cycle!!!
their are specail cells in the senses called receptor cells wen the receptor cells are exposed to a particular stimuli they send impulses through the sensory nuerone which go to the CNS either the brain or spinal cord the brain then sends impulses through the motor nuerone to the effector which is the muscle or gland.wen the impulse reaches the effector it causes the muscle to contract or the gland to produce hormones.

an easy way to remeber motor nuerone is that that it is like our hand
cell body-palm
dendrites-fingers
arm-axonhope this helps
After all is said and done, more is said than done.

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Offline sanity_master

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #357 on: June 07, 2009, 11:34:00 am »
gd luck with paper3 tom guys.....and dont forget!!


discussion after 24 hours!! ;)


have fun, not discussing the exam :D

Offline Feva

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #358 on: June 07, 2009, 11:36:31 am »
hehe thanks alot  :D

im off to study for 5-6 hours straight now.. so even if i mess up 2moro i can't blame myself for not studying haha

Offline sanity_master

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Re: Biology Paper 1 and 3 help HERE ONLY!!!
« Reply #359 on: June 07, 2009, 11:40:50 am »
gd luck with ur studying......


and may God be with us all!....

its almost over peeps....lets do it! :D