Wednesday, May 2, 2007
Monday, April 30, 2007
Friday, April 27, 2007
Tubeworms Adaptations
Tube worms have no mouth, eyes, or stomach ("gut"). Their survival depends on a symbiotic relationship with the billions of bacteria that live inside of them. These bacteria convert the chemicals that shoot out of the hydrothermal vents into food for the worm. This chemical-based food-making process is referred to as chemosynthesis.
Thursday, April 26, 2007
Shark Adaptations
If you look at a shark, you will see it has a number of special adaptations that allow it to fit into an ocean environment. A shark has fins and a streamlined body that help it swim through water. It has gills, which take in oxygen directly out of the water. Because of its gills, sharks can stay underwater and not have to come to the surface to breathe. Sharks also have a tremendous number of sharp teeth.