1 / 7

Evolution

Evolution. Vocabulary. Adaptation – a mutation or change in an organism’s DNA that increases its chance for survival Competition – when organisms fight over limited (not enough) resources (food, water, living space) Evolution – a change in an organism over time (hundreds of years)

joshua
Télécharger la présentation

Evolution

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evolution

  2. Vocabulary • Adaptation – a mutation or change in an organism’s DNA that increases its chance for survival • Competition – when organisms fight over limited (not enough) resources (food, water, living space) • Evolution – a change in an organism over time (hundreds of years) • Extinction – when an species no longer exists

  3. Vocabulary • Fossil – an imprint of the remains of an organism in rock • Mutation – a change in an organism’s DNA causing a new trait • Natural Selection – when organisms with the best traits to survive in their environment survive over those that do not have those traits (Survival of the fittest) • Overproduction – when organisms produce more offspring then there are enough resources for

  4. Evolution: • A change in a species over _______________ • Evidence - Fossil Record A. youngest fossils are near the ____________ B. Oldest fossils are near the ____________ Time Top (surface) Bottom (deepest)

  5. Adaptation: • Mutation that _____________ an organism’s chance for survival • Ex. Pepper moths Increases

  6. Competition: Darwin A. Natural Selection 1. Organisms that are best ____________ will survive 2. Affects are seen in fast reproducers ex. Bacteria B. Overproduction 1. A species produces more organisms than can ________ due to limited resources, causing competition C. Competition 1. Organisms fight for _______________ 2. Best adapted survive (“survival of the __________”) Adapted Survive Resources Fittest

  7. Extinction A. all members of a species ________ B. due to not being able to ___________ C. evidence - fossils Die Adapt

More Related