Evidence for Darwin's theory is found in fossils, despite challenges with erosion of soft-bodied ancient organisms. Natural selection explains antibiotic resistance in bacteria because rapid reproduction combined with mutations allows resistant strains to survive and multiply when exposed to antibiotics.
Evidence for Darwin's theory is found in fossils, though soft-bodied organisms from long ago erode easily. Natural selection explains antibiotic resistance in bacteria due to rapid reproduction, mutations, and the survival/reproduction of resistant strains.
| Front | Where's the eidence for Darwins theory been found? Weaknesses of fossil records: How does the theory of natural selection show the development of antibiotic resistant strains |
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| Back | In fossils, to show how organisms have changed over long periods of time. -Organsims years ago were soft bodied, therefore eroded. -Bacteria reproduce rapidly with many mutations. -Some are resistant to antibiotics therefore live and reproduce more resitant bacteria. -Resistant strain develops. |
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