Qualification > Sciences
Biology Paper 1 and 3 help HERE ONLY!!!
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--- Quote from: kim on June 04, 2009, 02:22:03 pm ---in which structures are simple sugars produced?
chloroplasts
cytoplasm
vacuole
at which level of organisation is an artery
cell
organ
organ system
tissue
what is the source of energy for water plants
mineral salts
small fish
sunlight
water
help sum1
--- End quote ---
chloroplasts (site of photosynthesis)
artery is a tissue..
sunlight...for photosynthesis.
aquarian93:
--- Quote from: kim on June 04, 2009, 02:22:03 pm ---in which structures are simple sugars produced?
chloroplasts
cytoplasm
vacuole
at which level of organisation is an artery
cell
organ
organ system
tissue
what is the source of energy for water plants
mineral salts
small fish
sunlight
water
help sum1
--- End quote ---
i think
chloroplast
tissue
sunlight
hope its rite and that it helps. gud luck
aquarian93:
hey insanity, sry din c dat uve already typed da answer
examsaresoon:
Hey! Can some one explain May/June 2004 Q29 and Q30?
Which shows the sex chromosomes in the body cells and in the sex cells in a man?
body cells sex cells
A XX all X
B XX all XX
C XY X or Y
D XY all XY
30 In humans, which types of variation are shown by blood group and height?
blood group height
A continuous continuous
B continuous discontinuous
C discontinuous continuous
D discontinuous discontinuous
The answer for both is C.
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no prob aquarian..
and examsaresoon..
for the first one..since its a male..all body cells have ofcourse XY...but for the sperms..50% have X, and 50% have Y..that is why there is a 50% chances at fertilization that its a boy or girl..
for the second..discontinous, is when there are distinct forms with no intermediates..and no environmental influence...continuous is when there are many forms with genetic and environmental influence..blood group can either be A, B, O or AB so discontinuous...and height can be literally anything...and is affected by parents height, and what we eat...so continuous...hope it helps..
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