Marine Ecosystem

Just like people, algae come in different colors—there are green, blue, red, and brown algae! Find out more about all of them at this site.

		Questions Name three main color groups of algae. What mineral do calcareous algae deposit in their tissues? What sea off the eastern coast of the United States is named after a kind of algae?

The National Aquarium

One day, seaweed could be an important source of energy and food worldwide. Find out more about this valuable resource at the home page of the National Aquarium in Baltimore.

		Questions How fast does giant kelp grow? What is another name for an organism called ulva? Name an ability that algae share with land plants.