unit 2 biology

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what is variation?
the differences that exist between individuals
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what are the two types of variation?
interspecific and intraspecific
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what is interspecific variation?
variation between different species
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what is intraspecific variation?
differences within a species
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what are the causes of intraspecific variation?
genetic or environmental factors
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explain genetic variation
all members of a species have the same genes, individuals within a species can have different alleles. genetic variation is inherited
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what is genotype?
alleles of an organism
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what is phenotype?
expressed characteristics of an organisms due to its genotype
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what s of the target population do you use when studying variation?
sample
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why do we sample accurately?
to ensure it's representative of the whole population and that any patterns observed or tested aren't down to chance
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what is random sampling?
dividing a field into a grid and using a random number generator to get coordinates
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what's the mean?
average of values collected in a sample. used to see variation between samples
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what's standard deviation?
the spread of data about the mean
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Other cards in this set

Card 2

Front

what are the two types of variation?

Back

interspecific and intraspecific

Card 3

Front

what is interspecific variation?

Back

Preview of the front of card 3

Card 4

Front

what is intraspecific variation?

Back

Preview of the front of card 4

Card 5

Front

what are the causes of intraspecific variation?

Back

Preview of the front of card 5
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