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It's A cause of their sizeCan someone also please explain these questions to me View attachment 40539View attachment 40540
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It's A cause of their sizeCan someone also please explain these questions to me View attachment 40539View attachment 40540
15-The piece of stalk is placed in sucrose solution with the highest water potential so, water will enter in the stalk. The side through which water will enter will expand/bend so the ans is either A or D & I thick the thick wall is lignified so it is impermeable to water. Thus it will not allow the entry of water & water will enter through the thin wall causing it to expand.Thanks A lot ! but I don't understand how 15 is A ??
and ab Q26 I dont get it aslo ...could u explain ?
Water has moved out of the cell in diagram 1 so solution W is more negative than X, but solution Y is less negative than X since water has moved in...so I'll have to go with ACan someone also please explain these questions to me View attachment 40539View attachment 40540
when we keep increasing the substrate conc
What Does it mean .......At a certain point Enzymes are working at its maximum possible rate ?
Bro.. You are comparing two Diffrent things (Volume and Time).. For time measurement You also have to take account of your Human reaction time which is About 0.3-0.5s .. so We always round our values to nearest Second.But we're using an accurate measuring instrument which can measure up till 2 decimal places! It's for a similar reason that using a buttered is more accurate than using a measuring cylinder
multiply the number of individuals with the biomass of each individual... the one with more biomass will be the producer (e.g. grass)...n the one with less biomass will be the tertiary consumer (e.g. fox)
what if we multiply all three of them? We'll get the correct answer in this way toomultiply the number of individuals with the biomass of each individual... the one with more biomass will be the producer (e.g. grass)...n the one with less biomass will be the tertiary consumer (e.g. fox)
what if we multiply all three of them? We'll get the correct answer in this way too
its always from highest energy to lowest.
Actually i shud thank uya ryt... n it's askng abt the energy so we have to multiply them all to find how much energy is present in the given biomass of all the individuals.... thnx
lol u're welcumActually i shud thank u
Yes.. This is From W09_11!!is the ans A for Q16 n Q39?
Yes.. This is From W09_11!!
Can someone also please explain these questions to me View attachment 40539View attachment 40540
Q 39=> if there were present small creatures then no leaf would be left... frm the table we cn see that small areas of leaves that r about 0.03mm r left so it shows that no microorganism or small vertebrates r present in the soil as if they were present then not a single part of the leaves wud have left behindCan someone also please explain these questions to me View attachment 40539View attachment 40540
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w07_qp_4.pdf
Question 10 (a) and (b)
The answer points are in the marking scheme, but I can't really put it together.
My question was " What are features, advantages, drawbacks of chi-squared test, standard error and t-test? 'What was ur question :/?
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