Unicellular and Multicellular Organisms Unicellular Organisms Unicellular organism

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 O 2 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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