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| Animals that once were similar, are now different. Happens when animals adapt to different environments. It can form a new species. |
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| Evidence an organism lived long ago. |
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| Any change or random errorin a DNA sequence. |
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| Change in body or behavior that allows animals to better respond to their environment (stimuli) |
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| Structures with common evolutionary origins. Provides evidence of evolution from a common structure. Example: Forelimbs of crocodlies, whales and birds. |
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| Promotes change in populations. Occurs when organisms with certain variations reproduce and pass their genes on to their children. Can be directional, disruptive or stablizing. |
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| Body structure that has no function (our appendix). Probably helped in the past. |
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| Distantly related animals evolve with similar traits. Occurs when unrelated species share environments. |
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| What evidence supports the idea of evolution? |
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| Fossils, Anatomy, Embryology, Biochemistry. |
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| non-living particles; cause disease; composed of inner core of nucleic acid; replictate inside host cells. |
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| Diseased caused by bacteria |
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Definition
| Meningitis, strep throat, TB, Tetnus, Lyme Disease. |
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| Characteristics of bacteria |
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| So small you can't see them (microscopic); prokaryotic cells; unicellular. |
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| Darwin's Theory of Evolution |
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| Certain animals are more likely to survive, have babies and pass those genes to future generations. |
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