Bio Paper 3 Variant 1

[TheBaller23]

http://theseedsite.co.uk/seedinside.gif <<< radicle is outside

dammit -_-

 

[ZainH]

dammit -_-

Lol relax, I messed up that as well. 2 marks big whoooop. The paper wasn't easy so grade thresholds will be low, you should be able to lose around 15-20 marks and still get an A*

 

[IGCSE O/L student]

Cortex? Why does that sound familiar..

idk. wtf is wrng wid me???

 

[ZainH]

idk. wtf is wrng wid me???

LOL, it's fine.. I wrote embryo for the pumule and pumule for the radicle -.-

 

[IGCSE O/L student]

LOL, it's fine.. I wrote embryo for the pumule and pumule for the radicle -.-

oh! dats worse
but still, i'm losin marks!!!

 

[ZainH]

oh! dats worse
but still, i'm losin marks!!!

Yeah same, as long as you didn't lose 15 marks.. An A* is till possible.
(I lost around 8-10 marks :S)

 

[IGCSE O/L student]

Yeah same, as long as you didn't lose 15 marks.. An A* is till possible.
(I lost around 8-10 marks :S)

only 15???
totally? or only 4 p3?

 

[ZainH]

only 15???
totally? or only 4 p3?

Only in paper 3 :s

 

[IGCSE O/L student]

Only in paper 3 :s

dats a relief.
but still not happy.

 

[Omar Hosny]

Just smile if you lost minimum 32 marks you are 99.9% A* that's 80% Bio curve never ever exceeded 75% so lose up to 20 marks in Paper 3 10 in paper 6.. between 2 and 8 in paper 1 you are A*

 

[IGCSE O/L student]

Just smile if you lost minimum 32 marks you are 99.9% A* that's 80% Bio curve never ever exceeded 75% so lose up to 20 marks in Paper 3 10 in paper 6.. between 2 and 8 in paper 1 you are A*

THNK U

 

[Lostsoul]

and for the mammal in cold water I wrote that they have a layer of fats called adipose layer that insulates them with heat. Is that correct in regards to the question?

 

[reya]

water re-absorbed (colon),Insulin production (Pancreas),bile added (duodenum) but i'm not sure !!!

 

[Babs saad]

water re-absorbed (colon),Insulin production (Pancreas),bile added (duodenum) but i'm not sure !!!

water is reabsorbed in the colon... but it said where is water mostly absorbed, it was the small intestine

 

[ZainH]

water is reabsorbed in the colon... but it said where is water mostly absorbed, it was the small intestine

Hope your right.. eh w/e 1 mark.

 

[Silver Wing]

WHAT WAS THE ANSWER FOR Y MAMMAL CAN STAY UNDERWATER FOR A LONG TIME??

You ought to develop some of these points:
1- They have a layer of fats which insulates them against heat loss from their blood.
2- They perform "Vasoconstriction", a process by which the blodd vessels near the skin constrict and become narrower to allow less blodd to flow near skin to avoid heat loss from it.
3- They are known to be Homeothermic
4- They can "Shiver producing heat"