Biology Paper 1 and 3 help HERE ONLY!!!

[....]

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

chloroplasts (site of photosynthesis)
artery is a tissue..
sunlight...for photosynthesis.

[aquarian93]

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

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.

[....]

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..

[examsaresoon]

Thanks! + rep!

[Kim]

cud sum1 explain  the nitrifying denitrifying nitrogen fixing bacteria?
wat does the nucleus in every body cell of a male contain?
X allele
y allele
y chromosome
y gene

[Kim]

cud sum1 explain  the nitrifying denitrifying nitrogen fixing bacteria?
wat does the nucleus in every body cell of a male contain?
X allele
y allele
y chromosome
y gene

would sum1 please answer me?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[kam]

ask the ques in chem and bio help thread
cuz nids there

[Kim]

ask the ques in chem and bio help thread
cuz nids there

kk thanks u r life saver

[IGStudent09]

Organisms in their environment notes

[MIU]

cud some1 plz send me the oct/nov 2008 physics p1 + ms because its not downloading from freeexampapers. my email is mu_1031@hotmail.com. il realy appreciate.

[nid404]

attached

[Coco]

cud sum1 explain  the nitrifying denitrifying nitrogen fixing bacteria?
wat does the nucleus in every body cell of a male contain?
X allele
y allele
y chromosome
y gene

would sum1 please answer me?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Nitrifying bacteria converts the nitrogen in the air (in the soil) in to nitrate ions which is a source of protiens for plants.
Denitrifying bacteria converts these nitrate ions back into nitrogen and releases it in the air.

Y allele

[kam]

cud sum1 explain  the nitrifying denitrifying nitrogen fixing bacteria?
wat does the nucleus in every body cell of a male contain?
X allele
y allele
y chromosome
y gene

would sum1 please answer me?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Nitrifying bacteria converts the nitrogen in the air (in the soil) in to nitrate ions which is a source of protiens for plants.
Denitrifying bacteria converts these nitrate ions back into nitrogen and releases it in the air.

Y allele

nope not Y allele
its y chromosome


wahab answered tht By the way