Qualification > Sciences
Biolgy paper 1 help!
Friends:
Answer of 29 was Pp x Pp
I think i am not losing any marks ;D ;D but not sure about 40 ??? ??? I wrote C.
Friends:
--- Quote from: thukon on June 06, 2009, 06:26:22 am ---
--- Quote from: Friends on June 06, 2009, 06:13:09 am ---
--- Quote from: john12345 on June 06, 2009, 06:11:18 am ---hey can sum1 please tell me de answer for de glucose thing
wat is glucose carried in ??
was it arteries only??
--- End quote ---
Nope. It is artery and veins both.
--- End quote ---
yes!!! I put areteries and veins.
Im asking again, what did u ppl put for the monocot leaf? The answer is D, the long thin one.
@vivek. Its C. Since its a 3:1 ratio, PP x Pp is the answer. The offspring will be PP, Pp, Pp, and pp, so 3 purple for 1 yellow. Simple.
--- End quote ---
Monocoat is D
And if PP X Pp is the answer u r wrong. Because offspring will be PP,PP,Pp and Pp
Therefor all purple. and No yellow.
nid404:
--- Quote from: Friends on June 06, 2009, 05:42:51 am ---
--- Quote from: nid404 on June 06, 2009, 05:14:27 am ---it was D dude.
cause when sewage is added bacteria feed on the organic matter,using a lot of dissolved oxygen. When this happens fishes have less oxygen to thrive on(they die). When they die it depletes oxygen levels more....so bacteria which do not require oxygen(anaerobically respiring bacteria)will increase cuz they can survive without oxygen
--- End quote ---
Sorry man I dont agree with U.
See when oxygen level decreases,the fishes starts to die.
so the number of bacteria increase as they feed on dead fishes.
as from first the oxygen is less they respire anaerobically.
And how can dying of fish decrease oxygen level...???
--- End quote ---
oxygen levels don't just decrease..they decrease because bacteria respire and use them up. When sewage is added bacteria feed and multiply rapidly. And when the fishes die bacteria feed on them too(fishes r organic matter )...so the level decreases more. So when the levels decrease anaerobically respiring bacteria start to grow(cuz they don't need the oxygen).
Highest is oxygen
then Algea
then nitrates
then suspended solids
then sewage fungus
u have wrongly interpreted it.
i'll explain
Sewage is pumped at X, this causes rise in sewage fungus,suspended solids and nitrates...algae falls as oxygen level falls. Look at the lines properly. At Y sewage fungus also reduce as oxygen depletes, nitrates r used up along with the suspended solids(organic solids). When their number reduces,oxygen levels r restores and algae grows again. I hope uve got it.I'm saying this for ur good...so that u don't repeat ur mistake. If u don't understand it i will explain it again but if u still want to go ahead with ur interpretation i can't say anything.
GOOD LUCK!!!
Friends:
Ok i got it.
But anyone know all the options...??????
thukon:
--- Quote from: Friends on June 06, 2009, 06:29:07 am ---
--- Quote from: thukon on June 06, 2009, 06:26:22 am ---
--- Quote from: Friends on June 06, 2009, 06:13:09 am ---
--- Quote from: john12345 on June 06, 2009, 06:11:18 am ---hey can sum1 please tell me de answer for de glucose thing
wat is glucose carried in ??
was it arteries only??
--- End quote ---
Nope. It is artery and veins both.
--- End quote ---
yes!!! I put areteries and veins.
Im asking again, what did u ppl put for the monocot leaf? The answer is D, the long thin one.
@vivek. Its C. Since its a 3:1 ratio, PP x Pp is the answer. The offspring will be PP, Pp, Pp, and pp, so 3 purple for 1 yellow. Simple.
--- End quote ---
Monocoat is D
And if PP X Pp is the answer u r wrong. Because offspring will be PP,PP,Pp and Pp
Therefor all purple. and No yellow.
--- End quote ---
Yeah i mistyped. I edited the post. I meant Pp x Pp, or both heterozygous.
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