chapter 5 Flashcards

(9 cards)

1
Q

biological evolution

A

change to heritable characteristic over time in living organisms

cumulative changes occurring within a population between on gen to the next

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2
Q

heritable characteristics are encoded for by

A

genes

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3
Q

heritable characteristics may be transferred between generations as

A

allele

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4
Q

concise definition for biological evolution

A

change in allele frequency of a populations gene pool over successive generations

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5
Q

fossil record as evidence for evolution

A

reveals features of an ancestor for comparison w living descendants

records show that over time changes in features of living organisms occured

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6
Q

fossils

A

preserved remains or trace of organism from remote past

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7
Q

preserved remains (body fossils)

A

direct evidence of ancestral form (includes bones, teeth, shells, leaves)

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8
Q

traces of remains

A

indirect evidence of ancestral forms, include footprint, tooth mark, burrow, faeces

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9
Q

fossil records

A

totality of both undiscovered and discovered fossils

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