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Divergent evolution PowerPoint Presentation
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Divergent evolution

Divergent evolution

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Divergent evolution

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  1. Darwin’s Finches are groups of birds with similar body shape and size but occupy their own niche and once had ancestral species. This is an example of ____. Divergent evolution

  2. The evolution of an ancestral species into an array of species that occupy diverse habitats is called _____ radiation. adaptive

  3. Similar species : unrelated organism evolve similar traits because they live in similar environments . Convergent evolution

  4. The Akialoa shown on top has a beak that does what? To reach nectar In flowers

  5. Structures that have a similar evolutionary origin and structure but are adapted for different purposes, such as a bat wing and a human arm, are called _____. homologous

  6. analogous Similar structure and function, have no common evolutionary origin..

  7. _______ can be best defined as the organism with favorable traits that are able to reproduce and pass their traits on to their offspring. Natural selection

  8. Any structure that is reduced in function in living organism but many have been used in an ancestor is known as a ____________. Vestigial structure

  9. The movement of genes into and out of the gene pool is called ______. Gene flow

  10. A variety of structural adaptations called __________ provides protection for an organism by copying the appearance of another species. mimicry

  11. An adult python pelvic girdle has some leg bones imbedded in its body are considered ______. Vestigial structures

  12. True or False Regarding the theory of evolution: • The theory is of changes in populations over time • The theory is changes in individuals not populations over time • Fossil did not shape Darwin’s ideas regarding Natural Selection • There are many examples documented in recent years. true false false false

  13. A structural adaptation enabling an organism to blend in with its environment is called what?________ camouflage

  14. ________ is a technique in which the breeder selects particular traits. Artificial selection

  15. Paleontologist have concluded from fossils that ancestors of whales were possible land-dwelling doglike animals. True of False. • These changes take place relatively quickly in individuals • The fossil record is incomplete • The fossil record is complete • Fossils are not used in the theory False true False False

  16. True or false? Animals hibernate.. 1.To conserve energy. 2. To avoid harsh climate conditions. 3. To locate prey. 4. To survive when food is hard to find. true true false true

  17. What type of protective adaptation does this show? camouflage

  18. Match the bird’s beak and food. insects ants worms seeds

  19. Artificial Camouflage Mimicry Gene pool Allelic frequency Genetic drift Stabilizing selection Polyploid Natural selection Punctuated equilibrium Vestigial structure Adaptive radiation D C A D A A C D C B C B