Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
8T:
--- Quote from: ~VIN1094~ on June 07, 2010, 07:11:07 pm ---D
B
B
want explanation?
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Yes please for 7 & 8 if possible :)
Vin:
--- Quote from: Shazizzzle on June 07, 2010, 07:57:28 pm ---So... an artery is a tissue? Or an organ?
Tissue, right?
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Um, I'm not sure because they are different compositions of elastic and muscle tissue, so I don't know if they are called tissue alone. They are usually referred to as blood vessels. There are different arteries with different compositions of elastic and muscle tissue, like pulmonary artery and a normal artery (I don't know any other arteries).
SNA:
--- Quote from: ~VIN1094~ on June 07, 2010, 07:55:34 pm ---Arteries and veins are BLOOD VESSELS
Blood cannot be a tissue, though it may have RBCs or WBCs, collection if cells as you say.. they don't really "join up" to do specific tasks. Let's just say the blood is a mixture of cells, ions etc. etc.
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then,can we say blood to be a system?
NidZ- Hero:
--- Quote from: aangel42 on June 07, 2010, 04:09:54 pm ---X and Z?
Or maybe the metal foil would reflect the light or mess it up or something, so only X?
Maybe the agar jelly is too heavy? Or maybe it makes no difference and Y too?
I DON'T KNOW :'( :'( :'( :'( :'( :'(
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X, Y Z
Vin:
--- Quote from: 8T on June 07, 2010, 08:04:32 pm ---Yes please for 7 & 8 if possible :)
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Got 4 right? Always more auxin is on the darker side.
7th ::::
--- Quote from: ~VIN1094~ on June 07, 2010, 07:41:55 pm ---
Don't really break your head because its not it the syllabus! ;)
--- Quote from: ~VIN1094~ on June 07, 2010, 07:50:48 pm ---
LOL ... This is what I can't understand too. Anyway, apparently the explanation is :: The sugar agar allows the auxin to pass through as it is organic and the metal doesn't.
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OK 8 ) Auxin always go away from light and multiply cells in that region. This results in the bending of the plant due to excessive growth.
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