evidence for evolution Flashcards

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1
Q

antibiotic resistant bacteria

A

reproduce rapidly and mutations occur during reproduction
mutated bacterium will represent original ancestor of a new resistant strain

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2
Q

fossils

A

show gradual changes of organisms over vast periods of time

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3
Q

hardening of soft materials

A

can produce casts or impressions
preservation is possible where decomposers cannot act eg glaciers
hard parts of organisms gradually replaced by minerals as they decay slowly

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4
Q

reducing resistant strains

A

patient finish course of AB to kill all bacteria
doctors don’t prescribe unnecessary ABs
use of AB in agriculture is restricted

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5
Q

antibiotics

A

development of new ones is slow and costly
struggles to keep up w emergence of new strains
eg MRSA

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