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    series question

    A lamb grows by 2/5 of its previous growth each month. If a lamb is 45cm tall, a) how tall will it be after 6 months? i keep getting like 388 for part a but when you do the limiting sum to see its final height i get 75 can any help pleaseee
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    integrating an exponential

    hi, how would you integrate: e^(3x) + 1/e^(2x) e to the power of 3x then plus 1, all divided by e to the power of 2x i separated the terms so it was e^(3x)/e^(2x) + 1/e^(2x) but im not sure how to go about integrating e^(3x)/e^(2x) thankyouu and can you please show working
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    exponential growth and decay

    1. The half life of radium is 1600 years. a) find the percentage of the radium that will be decyaed after 500 years b) find the number of years that it will take for 75% of the radium to decay. For a i got 80.5% as an answer but for the correct answer you need to minus this from 100% and i...
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    rhodopsin

    I dont understand how rhodopsin is sensitive to blue light yet they are located in rods which cant detect colour and only use shades of grey, black and white? can anyone explain this pleassee
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    Transgenics

    Do you need to know the actual process of the polymerase chain reaction thats makes numerous copies of recombinant DNA in transgenic species.
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    Answer writing

    Does anyone have a structure the follow when answering questions in biology like SEXY(state, explian, example, why) or PEEL(point, evidence, example and link)??
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    Concavity graph

    I keep getting this grpah the worng way around can anyone answer and explain it? sketch a curve where y"<0 for x>1 and y">0 for x<1. thankyouu
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    Meiosis????

    So i know meiosis occur around puberty in males, are the chromosomes present in their meiosis process from their mother and father?
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