Download
the great barrier reef n.
Skip this Video
Loading SlideShow in 5 Seconds..
The Great Barrier Reef PowerPoint Presentation
Download Presentation
The Great Barrier Reef

The Great Barrier Reef

183 Vues Download Presentation
Télécharger la présentation

The Great Barrier Reef

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. The Great Barrier Reef by: Dawn N

  2. Location • The Great Barrier Reef is on the north-east coast of Australia.

  3. Weather Temp Rainfall Inches

  4. Landform There are 600 islands that make up the Great Barrier Reef.

  5. Animals • Nudibranch • Nudibranchs live on sea squirts, sponges, and other poisonous animals. They recycle the toxins for their own defense. • They are called solar-powered because they eat soft corals, which generally have algae living in their tissues. They don’t digest the algae, instead they keep the algae in their skin. The algae continue photosynthesizing, making food for themselves and the nudibranchs.

  6. Hard Coral that is no bigger than a fingernail. They only grow about a half inch a year.

  7. Cone snails have a tubelike siphon called a proboscis, for sniffing out worms and other prey on the seafloor. The cone snail injects poison that causes muscle spasms and death. It can also poison a human, although deaths are rare.

  8. Plants • Seagrass • Mangrove • Sponge

  9. Threats • Human expansion is one of the biggest threats to coral reefs. As we change the landscape, the amount of freshwater runoff increases. • Pollution also damages the reef.

  10. Questions & Answers • The Great Barrier Reef has a collection of over ______ types coral reefs. • 400 • 1,500 different species of ______ live here. • fish • There are _____ kinds of mollusc. • 4,000 • _________________ is the habitat of some threatened species like the dugong ('sea cow') and the large green turtle. • The Great Barrier Reef

  11. Sources: • Great Barrier Reef @ www.nationalgeographic.com • World Heritage Great Barrier Reef.htm • http://www.crystalinks.com/greatbarriereef.html • http://www.divethereef.com/Guides/SeasonsF.asp