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Definition
| sum of all the variety if organisms in the biosphere |
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| variety in ways all organisms survive and reproduce |
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| organs that have reduced in size and in function--do not disappear because it does not affect the organisms ability to survive |
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Definition
| structures that come from the same embryonic tissue (have similar structure) but have different mature forms and dfferent functions Example: forlimb of a bat and a human arm |
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| like structures from different descent Example: wings of birds, bats, and insects. |
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Definition
| recombination of genes during meiosis |
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| traits being selected are (increasing over time) will contribute to the organism's fitness causing changes in the inheritable traits of a popultaion |
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Definition
| the number of times the allele occurs in the gene pool |
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Definition
| the number of times the allele occurs in a gene pool compare to other alleles |
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Definition
| combined genetic information of all members in the population |
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Definition
| in small populations, individuals that a specific allele may have more offspring by chance. Over time the series of chance occurrences can cause an allele to become common in a population |
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Term
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Definition
| in small populations, individuals that a specific allele may have more offspring by chance. Over time the series of chance occurrences can cause an allele to become common in a population |
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Term
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Definition
| inherited characteristic that increases chances of survival |
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