Join TSR now and get all your revision questions answeredSign up now
    Offline

    2
    ReputationRep:
    Pyramids of Biomass are always in a pyramidal shape: the biggest at the bottom


    Posted from TSR Mobile
    Offline

    11
    ReputationRep:

    If I read that correctly, it says that some pyramids of biomass can be inverted? So I'm guessing it could be option 3. God damn it. The way none of our teachers or text books have actually mentioned that before...-.-
    Offline

    0
    ReputationRep:
    (Original post by js171)
    Pyramids of Biomass are always in a pyramidal shape: the biggest at the bottom


    Posted from TSR Mobile
    Thats what I've always learnt, the textbook, my teachers, and my gcse science have never mentioned an inverted pyramid of biomass. However if you google it, it unfortunately does exist. Therefore, it probably is the third one x
    Offline

    2
    ReputationRep:
    (Original post by zzFishstick)
    If I read that correctly, it says that some pyramids of biomass can be inverted? So I'm guessing it could be option 3. God damn it. The way none of our teachers or text books have actually mentioned that before...-.-
    I read through that but I believe that for the GCSE qualification, we are taught that it is always pyramidal shaped, I learnt from the AQA revision biology book and this was the case, I also just looked at bitesize http://www.bbc.co.uk/schools/gcsebit...midsrev2.shtml (it's the last paragraph)


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    The pyramids of biomass looks to be the third option however I put option 1, for goodness sake! (But only 1 mark)
    Offline

    2
    ReputationRep:
    (Original post by SportsFan)
    The pyramids of biomass looks to be the third option however I put option 1, for goodness sake! (But only 1 mark)
    I really think it's likely to be the first, considering that I have been taught that pyramids of biomass are always pyramidal shape (at least in GCSE) because the top consumer/ predator is at the top and the producer at the bottom


    Posted from TSR Mobile
    Offline

    11
    ReputationRep:
    (Original post by js171)
    I read through that but I believe that for the GCSE qualification, we are taught that it is always pyramidal shaped, I learnt from the AQA revision biology book and this was the case, I also just looked at bitesize http://www.bbc.co.uk/schools/gcsebit...midsrev2.shtml (it's the last paragraph)


    Posted from TSR Mobile

    Yeah that's true but, the question was about planktons and according to Wikipedia it says that in some cases with planktons, the pyramid is inverted. I wonder if the specification tells us that we should be aware of this?
    Offline

    0
    ReputationRep:
    I would love to know how the examiners are going to dig themselves out of this biomass pyramid mess! Is it just me that had no idea what the last page was even asking
    Offline

    0
    ReputationRep:
    Lol why is everyone so concerned about a 1 mark question??
    Offline

    2
    ReputationRep:
    (Original post by zzFishstick)
    Yeah that's true but, the question was about planktons and according to Wikipedia it says that in some cases with planktons, the pyramid is inverted. I wonder if the specification tells us that we should be aware of this?
    If they did do all this sneaky trick questions for 1 mark, then I would be very surprised. I guess we will just have to wait and see! AQA were really hard on us, I found it was a lot of writing and missed out a few questions hoping to go back to them at the end- but then had no time! Did you find it hard with timings? And what do you suppose the grade boundaries would be? X


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    (Original post by js171)
    I really think it's likely to be the first, considering that I have been taught that pyramids of biomass are always pyramidal shape (at least in GCSE) because the top consumer/ predator is at the top and the producer at the bottom


    Posted from TSR Mobile
    That's what I hope anyway since why would they give such a difficult question, I don't even think inverted pyramids of biomass is the spec.
    Offline

    2
    ReputationRep:
    (Original post by Examfailer)
    I would love to know how the examiners are going to dig themselves out of this biomass pyramid mess! Is it just me that had no idea what the last page was even asking
    The whole last question was so irrelevant


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    (Original post by Examfailer)
    I would love to know how the examiners are going to dig themselves out of this biomass pyramid mess! Is it just me that had no idea what the last page was even asking
    I ran out of time and didn't even get to read the last page, goodbye any chance of A*
    Offline

    2
    ReputationRep:
    (Original post by SportsFan)
    That's what I hope anyway since why would they give such a difficult question, I don't even think inverted pyramids of biomass is the spec.
    I'm hoping this is the case, they aren't allowed to give us any questions that are not a) in the text book and b) in the specification so I think the answer would be the first one


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by js171)
    The whole last question was so irrelevant


    Posted from TSR Mobile
    I thought I was the only one who thought that! Seriously, I did not really understand what topic it was referring to, what it was assign. I wouldn't be surprised if I lost all the marks on that page. I also didn't see the labelling questions and found many other party's quite tricky. Good bye a*

    Goodluck xx
    Offline

    1
    ReputationRep:
    From the spec:
    "The mass of living material (biomass) at each stage
    in a food chain is less than it was at the previous
    stage. The biomass at each stage can be drawn
    to scale and shown as a pyramid of biomass."
    Offline

    2
    ReputationRep:
    (Original post by Bambie33)
    I ran out of time and didn't even get to read the last page, goodbye any chance of A*
    Do you know how many marks you missed out? I am in the same position as you apart from the fact I missed out the 5 marker instead and skipped a few to go back too because I don't do it in order (bad move) x praying the grade boundaries are low


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by Examfailer)
    I would love to know how the examiners are going to dig themselves out of this biomass pyramid mess! Is it just me that had no idea what the last page was even asking
    You are definitely not the only one...I answered the first 2 marker with assurance...but the other 2 I wrote gibberish!
    Offline

    0
    ReputationRep:
    (Original post by Bambie33)
    I ran out of time and didn't even get to read the last page, goodbye any chance of A*
    I can really empathise with you. I feel absouloubtly distraught, I really wanted an a*. I hope you get it still. Usually I finish 15 minutes early but this time I only had a couple of minutes to spare xx
    Offline

    0
    ReputationRep:
    Are you dope Pyramid: it involved Animal Plankton, Plant Plankton, Shark? You seriously saying a plant eats an animal maybe if its a venus flytrap but still. Common sense
 
 
 
Poll
Should MenACWY vaccination be compulsory at uni?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.