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hey..is it true that the regulation/homoeostasis questions will only come in part b???
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nopes i dont think so..i remember seeing questions in section a too..!hey..is it true that the regulation/homoeostasis questions will only come in part b???
sure...we all need them..!! each of us gotta pray 4 everyone
yeah they were, few years back.. but my teacher said that the whole questions regarding that chap now only come in section b...nopes i dont think so..i remember seeing questions in section a too..!
Explain why variation is important in selection;
1. ref. continuous / discontinuous variation ;2. genetic / inherited variation ;3. variation in phenotype / characteristics / AW ;4. (can be due to) interaction of genotype and environment ;5. e.g. of characteristic that influences survival ;6. ref. intraspecific competition / struggle for existence ;7. those with favourable characteristics survive / AW ;8. pass on favourable characteristics to offspring ;9. those with disadvantageous characteristics die ;
Variation means the presence of different characteristics or traits. There will be genetic variation within the population. The interaction of the genotype and environment results in phenotypic variation. Variation results in different survival rates of organism, which ultimately leads to reproductive success or failure. Organisms with most suitable traits and those that are best adapted to a stable environment have a survival advantage. Those surviving better get more chances of reproduction. They pass on their favourable characteristics to their offsprings and their number further increases. Whereas, those with disadvantageous characteristics, cannot survive, and die.
^need this answer to be improved a bit... hassam angelgirl:)
lol..Nop it can be in section A too
Biology is i think the only subject in whch u can see applications in section too
Examiner of biology likes to give shocks
hmmm i guess if u write this u will gain full credit...Explain why variation is important in selection;
1. ref. continuous / discontinuous variation ;2. genetic / inherited variation ;3. variation in phenotype / characteristics / AW ;4. (can be due to) interaction of genotype and environment ;5. e.g. of characteristic that influences survival ;6. ref. intraspecific competition / struggle for existence ;7. those with favourable characteristics survive / AW ;8. pass on favourable characteristics to offspring ;9. those with disadvantageous characteristics die ;
Variation means the presence of different characteristics or traits. There will be genetic variation within the population. The interaction of the genotype and environment results in phenotypic variation. Variation results in different survival rates of organism, which ultimately leads to reproductive success or failure. Organisms with most suitable traits and those that are best adapted to a stable environment have a survival advantage. Those surviving better get more chances of reproduction. They pass on their favourable characteristics to their offsprings and their number further increases. Whereas, those with disadvantageous characteristics, cannot survive, and die.
^need this answer to be improved a bit... hassam angelgirl:)
what about the first ms point? any idea..and jazakAllah khairennhmmm i guess if u write this u will gain full credit...
Continuous variationwhat about the first ms point? any idea..and jazakAllah khairenn
how do i put this in my answer..?Continuous variation
In continuous variation there is a complete range of measurements from one
extreme to the other. Height is an example of continuous variation -
Discontinuous variation
This is where individuals fall into a number of distinct classes or
categories, and is based on features that cannot be measured
across a complete range. You either have the characteristic or
you don't. Blood groups are a good example: you are either one
blood group or another - you can't be in between. Such data is
called discrete (or categorical) data. Chi-squared statistical
calculations work well in this case.
you can write about length of some fish or size of animals... like for certain fish small size is advantageous as they can avoid being attacked by predators...etchow do i put this in my answer..?
in ur answer u dont need to explain it in detail i guess...u just have to mention that phynotypic variation can be either continues or discontinuos and is the resuld of interaction with the variation in genotype and the enviorment..how do i put this in my answer..?
and then continue rest of ur own answer..in ur answer u dont need to explain it in detail i guess...u just have to mention that phynotypic variation can be either continues or discontinuos and is the resuld of interaction with the variation in genotype and the enviorment..
yes absolutly...Explain why variation is important in selection;
1. ref. continuous / discontinuous variation ;2. genetic / inherited variation ;3. variation in phenotype / characteristics / AW ;4. (can be due to) interaction of genotype and environment ;5. e.g. of characteristic that influences survival ;6. ref. intraspecific competition / struggle for existence ;7. those with favourable characteristics survive / AW ;8. pass on favourable characteristics to offspring ;9. those with disadvantageous characteristics die ;
Variation means the presence of different characteristics or traits. There will be genetic variation within the population. The interaction of the genotype and environment results in phenotypic variation. Phenotypic variation may be continuous or discontinuous. Variation results in different survival rates of organism, which ultimately leads to reproductive success or failure. Organisms with most suitable traits and those that are best adapted to a stable environment have a survival advantage. Those surviving better get more chances of reproduction. They pass on their favourable characteristics to their offsprings and their number further increases. Whereas, those with disadvantageous characteristics, cannot survive, and die.
hassam: you needed help with this
angelgirl:): is it correct now?
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