Types of OrganismsUnicellular Organismsvs.Multicellular Organisms

Unicellular Organisms

Unicellular OrganismsDefinition:

Unicellular organism – an organism made of only one cell

Information:These organisms are very small and need

to be seen with a microscope.

Examples of Unicellular Organisms

Amoeba

Bacteria

Protozoa

Unicellular algae

Unicellular fungi

Unicellular yeasts

Paramecium

Unicellular Organisms Benefits

They can reproduce faster

Characteristics Offspring are

identical to each other and to parent(s)

They are not as complex

Do NOT have cell differentiation

They tend have shorter lives than multicellular organisms

Images of Unicellular Organisms

Multicellular Organisms

Multicellular OrganismsDefinition:

Multicellular organism – an organism made of two or more cells

Information:

These organisms are able to be seen with the naked eye.

These organisms need all parts of themselves to survive. (with few exceptions)

Common Names Many – celled organisms

Mammals

Birds

Reptile

Fish

Examples of Multicellular Organisms

Humans

Cats

Dogs

Insects

Birds

Flowers

Mold

Trees

Images of Multicellular Organisms

Multicellular Organisms Benefits

They are able to adapt (have different traits)

They DO have cell differentiation

Characteristics They consist two

or more cells They are able to

grow large Tend to be more

complex than unicellular organisms

Exit Slip 1) Identify the multicellular organism: a) All algae b) Sunflower c) Amoeba d) Bacteria 2) Analyze which image is an unicellular

organism:A B C D