Evolution 1
🇬🇧
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Evolution 1 - Details
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18 questions
| 🇬🇧 | 🇬🇧 |
| Change in a population of species over time | Theory of evolution |
| Traits can be acquired or lost during an animals lifetime through use or disuse | Theory of acquired traits |
| Curved saddle back shells and long necks | Espanola island giant tortoise |
| Dome shaped shells and short necks | Santiago island giant tortoise |
| Process of evolution step 1random mutations in DNA adds diversity to traits in gene pool | Trait variation from gene mutation |
| Process of evolution step 2 favors the fittest in a population and prevents overpopulation | Natural selection |
| Process of evolution step 3 an organism survives long enough to preproduce and pass the trait on | Reproductive inheritance |
| Process of evolution step 4 over time more and more organisms acquire the trait | Population adaptation |
| Ability to survive and reproduce | Fittness |
| No offspring or sterile offspring, different times of maturity, different mating seasons, different mating behaviors | Reproductive isolation barriers |
| Occurs when gene variation is low and there are no new gene adaptations in a species | Extinction due to loss of gene diversity |
| Rapid evolutionary change or speciation followed by a longer period of no change | Punctuated equilibrium |