1 / 7

KEY CONCEPT Every ecosystem includes both living and nonliving factors.

liko
Download Presentation

KEY CONCEPT Every ecosystem includes both living and nonliving factors.

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

    2. An ecosystem includes both biotic and abiotic factors. Biotic factors are living things. plants animals fungi bacteria

    3. Abiotic factors are nonliving things.

    4. Changing one factor in an ecosystem can affect many other factors. Biodiversity is the assortment, or variety, of living things in an ecosystem. Rain forests have more biodiversity than other locations in the world, but are threatened by human activities.

    5. A keystone species is a species that has an unusually large effect on its ecosystem.

    6. Keystone species form and maintain a complex web of life.

    7. Another keystone species example – sea otters Sea otters live in a kelp forest ecosystem. A kelp forest ecosystem has high biodiversity. Sea otters eat sea urchins. Sea urchins eat kelp holdfasts.

More Related