1 / 9

Interactions Among Living Things Ch. 1.3

Environmental Science. Interactions Among Living Things Ch. 1.3. 1) Adapting to Environments. A ) Natural Selection Population has individuals Individuals have characteristics for survival and reproduction Offspring do the same. 1) Adapting to Environments. B) Adaptations

zena
Download Presentation

Interactions Among Living Things Ch. 1.3

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. Environmental Science Interactions Among Living ThingsCh. 1.3

  2. 1) Adapting to Environments A) Natural Selection • Population has individuals • Individuals have characteristics for survival and reproduction • Offspring do the same

  3. 1) Adapting to Environments B) Adaptations • Behaviors/characteristics to allow to survive C) Niche- how an organism makes its living • Where it feeds, sleeps, survives • makes its home

  4. 2) 3 Major Types of Interactions A. Competitions • The struggle between organisms to survive in a habitat with limited resources

  5. 2) 3 Major Types of Interactions • B. Predation • One organism kills and eats another • Predator - does the killing • Prey - organism killed • When death rate exceeds birth rate-population decreases

  6. 2) 3 Major Types of Interactions C. Symbiosis • Close relationship between 2 species • benefiting one species • 3 types of relationships • 1. Mutualism • 2. Commensalism • 3. Parasitism Tortoise and Bird (click video-sound to view)

  7. 1. Mutualism- • Both species benefit • Ex: sea anemone & clownfish • Clownfish feeds on sm. invertebrae to protect sea anemone • Sea anemone feeds on clownfish waste

  8. 2. Commensalism- • One species benefits, other species is not helped or harmed • Ex: fish protecting fish

  9. 3. Parasitism- • An organism living in or on another organism • Parasite benefits • Ex: leeches, ticks, fleas • Host provides living space and is harmed

More Related