Unicellular and Multicellular Organisms

Unicellular Organisms Unicellular organism are one celled living

things. Algae are one celled organisms that contain

chlorophyll, and live on or near the surface. Algae produce most of the O2 that we

breathe. Algae are microscopic and can not be seen

by the naked eye. The most common forms of Algae are:

Diatoms- make their own food (photosynthesis) Dinoflagellates- can both make their own food

and get food from other sources

Diatoms and Dinoflagellates

Multicellular Algae Seaweed are the most common form of

multicellular algae. There are three types of Seaweed:

Red Brown Green

Seaweed has leaves for photosynthesis, stems for transport, and roots for absorbing water.

Seaweeds are vascular plants. There are many species of seaweed and

each has its own special adaptation for survival.

Seaweeds

Summary Algae produces most of the oxygen that we

breathe. Multicellular algae, or seaweed, is classified

in three colors: red, green, and brown. Unicellular Algae is broken down into two

groups Diatoms and Dinoflagellates. All of these organisms have special and

unique adaptations that enable them to survive their environments.

Plankton is a combination of uni and multicellular algae and forms the basis of all life in the ocean.

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