done my paper 5 bio

[don8ld994]

was wondering is it correct for burette to be used to drop iodine?
they asked why didn't the larvae eat through the midrib? i said that the midrib is hard and can't be bitten through.
for my observation i got 48 drops and my friend got like 30+ drops to change to blue black, am i wrong?
for area right, do we count a small dot as 1cm^2 or several dots as 1cm^2

 

[Rashu712]

was wondering is it correct for burette to be used to drop iodine?
they asked why didn't the larvae eat through the midrib? i said that the midrib is hard and can't be bitten through.
for my observation i got 48 drops and my friend got like 30+ drops to change to blue black, am i wrong?
for area right, do we count a small dot as 1cm^2 or several dots as 1cm^2

Burette can be used but a pipette will be easier to use.
You could be right if you;ve taken the measurements correctly.
Each grid is one cm^2.