A level Biology: Post your doubts here!

[fantastic girl]

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Someone plz explain

i never got this question too :/

 

[nehaoscar]

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Someone plz explain

Net primary productivity is only the useful energy transferred i.e without any losses or any energy used by the plant itself (only the energy successfully transferred to the next trophic level)
the diagram shows the useful energy in each box
so it's just
0.75/1.8 = B

 

[lara dalal]

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Someone plz explain

Herbivore is the primary productivity. Hence finding the proportion of net primary productivity. You have to do net primary/gross promary. Gross primary productivity is whatever amount of energy being supplied from the producer i.e 1.8 and net primary is whatever was actually absorbed after energy loss by respiration digestion etc i.e 0.75 hence the ans is 0.75/1.8 which is B

 

[alexkay]

Can any explain how to spot if the error bars overlap or not ??

 

[Heba A.Moety]

You can check this out as well
https://www.xtremepapers.com/community/threads/biology-paper-5-tips.27105/

u really r a great help !! may God bless u and u get straight A*s

 

[Heba A.Moety]

Can any explain how to spot if the error bars overlap or not ??

check this out https://www.xtremepapers.com/community/threads/a-level-biology-post-your-doubts-here.9858/page-259
i wrote it there hope it helps!!

 

[hizirofaki]

plz someone explain how 4 eyepiece graticule

 

[nehaoscar]

???
qwertypoiu and anyone else please explain ?

 

[Heba A.Moety]

plz someone explain how 4 eyepiece graticule

can u send me the ques..

 

[Heba A.Moety]

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???
qwertypoiu and anyone else please explain ?

well its D i believe
because lysosomes mainly contain hydrolytic enzymes so the enzyme activity in lyso. is highest

 

[nehaoscar]

well its D i believe
because lysosomes mainly contain hydrolytic enzymes so the enzyme activity in lyso. is highest

what are hydrolytic enzymes??
and yeah it is D

 

[hizirofaki]

can u send me the ques..

https://www.xtremepapers.com/community/attachments/11160221_10204517600243144_750592502_n-jpg.53218/
plz explain

 

[Lola_sweet]

well its D i believe
because lysosomes mainly contain hydrolytic enzymes so the enzyme activity in lyso. is highest

These enzymes catalyze the hydrolysis of a chemical bond of a compound such as proteins, nucleic acids, starch, fats, phosphateesters, and other macromolecular substances

 

[hizirofaki]

https://www.xtremepapers.com/community/attachments/11160221_10204517600243144_750592502_n-jpg.53218/
http://www.studentbounty.com/pastpa...el/Biology (9700)/2011 Nov/9700_w11_qp_11.pdf
SAME QUESTION BUT DIFFERENT ANS ????/?

 

[princess Anu]

why can't this be B? disulphide nd peptide???

 

[princess Anu]

help

 

[hizirofaki]

why can't this be B? disulphide nd peptide???

WHTS THE ANS d?

 

[bubbles1997]

why can't this be B? disulphide nd peptide???

is it C?

 

[nehaoscar]

doesn't nitrogen fixation need anaerobic?? ... but it's A...

 

[My Name]

u really r a great help !! may God bless u and u get straight A*s

Thank you ^_^ I'm glad I could help. Ameen
May God bless you with A*s as well!