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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 350901 times)

Offline diva_sparkles

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3210 on: June 07, 2010, 08:32:51 pm »
um... oct 2009 q 18
y is it B?
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3211 on: June 07, 2010, 08:37:26 pm »
Quote from: deadman786 on June 07, 2010, 08:27:12 pm
Yes but why!! It should be C in my view. I mean the folliage leaves photosynthesise don't they???
Anyway,

Well after some searching, I've come across this...

http://wiki.answers.com/Q/Is_blood_concidered_a_connective_type_tissue

the only thing I get is that blood is some sort of a tissue. Plus they're calling artery to be the same type (connective?) tissue. AHHHH!!!! I hate Bio!!! Why did I choose this subject!!!!
 
@ Ivo YOU play Fifa 2010??? Surprising. I suppose you're a girl (guessing from you avatar). Not many girls I know like it lol. My sister never plays it with me cause I beat here with scores like 3-0 or 5-0 loool :D...

The leaves begin to photosynthesis. There is a greater increase in mass in stage four, in all others the stored food (starch) is used up so decrease in mass.

That is way above our level. I think we should stick to our syllabus.

I bought FIFA 2010 long time ago, but never tried it. But imma play it too soon ;D
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3212 on: June 07, 2010, 08:41:14 pm »
Quote from: diva_sparkles on June 07, 2010, 08:32:51 pm
um... oct 2009 q 18
y is it B?
can you please state the question as i cant open 2009 papers on fep. :D
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3213 on: June 07, 2010, 08:42:34 pm »
Quote from: ~!Intoxication!~ on June 07, 2010, 08:16:38 pm
OK you are confusing me and yourself :P

Circulatory System

Arteries and veins : Blood Vessels (which carry blood), they are simply combination of muscles and tissues.

Blood : Medium of transportation throughout the body.
sorry....cheese! i hope they don't ask any questions like this tomorrow!
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3214 on: June 07, 2010, 08:45:50 pm »
Hello once again .
 Why is the answer B in O/N 09 q 5 p 12??
Remind me please of insect's characteristics?
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3215 on: June 07, 2010, 08:46:17 pm »
Quote from: diva_sparkles on June 07, 2010, 08:32:51 pm
um... oct 2009 q 18
y is it B?

A- The person is resting as there is no change in the breathing rate.

B- He is exercising as increase in breathing rate.

C-HE has stopped exercising at this point so the body is coping up with the oxygen dept created therefore graph parallel to x-axis.

D- Recovered from O2 dept so rate slowly decreasing until original rate.
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3216 on: June 07, 2010, 08:51:09 pm »
Quote from: ~!Intoxication!~ on June 07, 2010, 08:46:17 pm
A- The person is resting as there is no change in the breathing rate.

B- He is exercising as increase in breathing rate.

C-HE has stopped exercising at this point so the body is coping up with the oxygen dept created therefore graph parallel to x-axis.

D- Recovered from O2 dept so rate slowly decreasing until original rate.
He aint talking about this varient so check 12 and pls answer :)
Oh & for the one u answered the answer is A look closely thts when the person started excersing as ur heart beat does not instantly or steeply on the graph increase but need time .
Hope I've been beneficial :D
« Last Edit: June 07, 2010, 08:52:47 pm by 8T »
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Offline diva_sparkles

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3217 on: June 07, 2010, 08:53:16 pm »
Quote from: SNA on June 07, 2010, 08:41:14 pm
can you please state the question as i cant open 2009 papers on fep. :D

here q18 plz
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3218 on: June 07, 2010, 08:58:46 pm »
Quote from: 8T on June 07, 2010, 08:45:50 pm
Hello once again .
 Why is the answer B in O/N 09 q 5 p 12??
Remind me please of insect's characteristics?


Has 3 pairs of legs. Its a mosquito.



Insects - 3 pairs of (jointed) legs, body divided into head-thorax-abdomen, 2 pair of wings/antennae, Eg-housefly, beetle cockroach

Arachnids- 4 pairs of (jointed) legs, head and thorax fused- abdomen, lack wings and antennae, compound eyes Eg, Spider, scorpion

Crustacea- 1/2 pairs of legs, body divided into head-thorax-abdomen, chitinous exoskeleton. Eg. Crabs, lobsters.

Myriapods-Segmented body, many legs(usually 2 per segment), Obvi. not divided into head-thorax-abdomen. Eg. Centipede, millipede
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3219 on: June 07, 2010, 09:00:49 pm »
Quote from: 8T on June 07, 2010, 08:51:09 pm
He aint talking about this varient so check 12 and pls answer :)
Oh & for the one u answered the answer is A look closely thts when the person started excersing as ur heart beat does not instantly or steeply on the graph increase but need time .
Hope I've been beneficial :D

Oh okay, I was wondering why the answer was B, thanks :)
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3220 on: June 07, 2010, 09:02:38 pm »
Quote from: ~!Intoxication!~ on June 07, 2010, 08:58:46 pm

Has 3 pairs of legs. Its a mosquito.



Insects - 3 pairs of (jointed) legs, body divided into head-thorax-abdomen, 2 pair of wings/antennae, Eg-housefly, beetle cockroach

Arachnids- 4 pairs of (jointed) legs, head and thorax fused- abdomen, lack wings and antennae, compound eyes Eg, Spider, scorpion

Crustacea- 1/2 pairs of legs, body divided into head-thorax-abdomen, chitinous exoskeleton. Eg. Crabs, lobsters

Myriapods-Segmented body, many legs(usually 2 per segment), Obvi. not divided into head-thorax-abdomen. Eg. Centipede, millipede


LOADS OF THANKS 4 THE EXTRAS :D
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3221 on: June 07, 2010, 09:06:08 pm »
Quote from: diva_sparkles on June 07, 2010, 08:53:16 pm
here q18 plz
i think the answer is B.this is how i think would be the reason. for P, the liquid moves to the left as soda lime adsorbs the co2 which lowers air pressure in test tube. thus, higher air pressure outside tube pushes liquid towards the test tube. for Q,air pressure inside test tube and outside is the same,so the liquid stays at the same place.the glass beads did not effect the experiment.
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Offline Helium

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3222 on: June 07, 2010, 09:07:37 pm »
Which one and why plz ???
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Offline diva_sparkles

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3223 on: June 07, 2010, 09:09:26 pm »
Quote from: SNA on June 07, 2010, 09:06:08 pm
i think the answer is B.this is how i think would be the reason. for P, the liquid moves to the left as soda lime adsorbs the co2 which lowers air pressure in test tube. thus, higher air pressure outside tube pushes liquid towards the test tube. for Q,air pressure inside test tube and outside is the same,so the liquid stays at the same place.the glass beads did not effect the experiment.

Thanks alot!! gud luck 4 bio
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Offline ksitna

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3224 on: June 07, 2010, 09:09:45 pm »
i think D
because xylem is a hollow tube and doesnt absorb anything and it cant contract either
it is dead
and it is used for support so.. D
tho i may be wrong
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