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does anyone have the answers to paper 1 bio from 1994 to 1999 ?
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POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!
- Thread starter MERIHAN
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um..I can't find it 
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oh wait there are 2 is it the one on the left ? I want the answers only
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ohh waiitt I found itt ! Thankk youu so mucchh
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soda lime absorbs the CO2 produced and so O2 and CO2 concentration decrease, decreasing the pressure and so liquid moves to the left, but at Q, the CO2 produced is not absorbed and the concenetration of gases stays the same (oxygen in=carbon dioxide out) and so there is no change in pressure and so it doesnt move. so BCould someone please explain this?? I chose A, since the liquid marker in P will move to the left coz CO2 is absorbed and the one in Q moved to the right coz CO2 is produced (I thought!)
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The ans is B.
Since one of the offspring is white, there should be a b allele coming from both the parents. As there is no option for a white parent we can assume that both of the parents are heterozygous ( genotype) and phenotype is brown.
Thanks bruv..soda lime absorbs the CO2 produced and so O2 and CO2 concentration decrease, decreasing the pressure and so liquid moves to the left, but at Q, the CO2 produced is not absorbed and the concenetration of gases stays the same (oxygen in=carbon dioxide out) and so there is no change in pressure and so it doesnt move. so B
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Can any1 plz explain june 2011 bio ppr 1, qs 26, 28 and 30??? thnx alot!
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Variant 1?Can any1 plz explain june 2011 bio ppr 1, qs 26, 28 and 30??? thnx alot!
26) D- you have to remember that the pod was earlier the carpel.So the pollen enters through the topmost part (stigma)
28) D- germinating does not involve an increase in dry mass. ( don't know the reason)
30) A- Since Y and 2 X chromosomes cannot be found in a female gamete.
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It's a cross section, meaning only half of the plant is show. So, if you can see 4 stamens, the plant really has 8.Please help me with this question.. I can only see 4 stamens.. but according to the answer given, it says the plant has more than 4 stamens.
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dry mass is total mass of the organism after deducting the water's mass, ie after drying the organism.ohk thnx!
can any1 explain wht is da diff btwn dry and wet mass?
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ok nw da ans makes sense.....thnx again!
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Bio question
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Biology (0610)/0610_w07_qp_1.pdf
1) Q 15
2) Q 33 how will i know the answer ?
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Biology (0610)/0610_w07_qp_1.pdf
1) Q 15
2) Q 33 how will i know the answer ?
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About Q 33, a food chain needs a producer and consumer. The picture shows differant consumers, but lacks a producer. So D wud be the correct ans, i think.