Unicellular- Consisting of one cellMulticellular- Consisting of many cellsProkaryote- an organism with only one cell and no nucleusEukaryote- an organism with cells and a nucleus enclosed in a membrane

Cell- The smallest unit of life!!!Heterotroph (consumer)- an organism that eats producers or other organisms for energyProducer (autotroph)- an organism that makes its own food through photosynthesis

Nucleus- The “brain” of the

cell

• Heterotroph- Organisms that consume food (consumer)

• Autotroph- Organisms that make their own food through photosynthesis (producer)

• Unicellular- Consisting of one cell• Multicellular- Consisting of many cells• Nucleus- The “brain” of the cell• Prokaryote- an organism with only one

cell and no nucleus• Eukaryote- an organism with cells and

a nucleus enclosed in a membrane• Cell- The smallest unit of life!!!

http://ccl.northwestern.edu/simevolution/obonu/cladograms/Open-This-File.swf

CELLS

CELLS

CELLS

CELLS

MULTICELLULAR

MULTICELLULARMULTICELLULAR

SEGMENTED BODY SEGMENTED BODY

JAWS

MULTICELLULAR

MULTICELLULAR

CELLS

CELLS

SEGMENTED BODY

SEGMENTED BODY

PLACENTA

HAIR

HAIR

JAWS

JAWS

LIMBS

LIMBS

Classification • the grouping of things

according to similar characteristics

Classify putting things into

groups or categories

Why do we use classification systems?

•  Gives order to the world• Easily understood and communicated

Taxonomy The science of classification

Aristotledeveloped one of the first

classification systems      TWO MAIN CATEGORIES:

• Plants

•Animals

• Water-dwellers… animals that swim

     Land-dwellers…. animals that walk/run

Air-Dwellers… animals that fly

Carolus Linnaeus

developed the modern classification system

Modern Classification System   7 major groups/levels

Kingdom---- (Largest most general)

PhylumClassOrderFamilyGenusSpecies---- (Smallest most

Specific)

• Organisms Grouped together based on similarities in form, structure, genetics, etc.

• The more levels organisms share, the more characteristics they will have in common

Organisms Grouped together based on similarities in form, structure, genetics, etc

The more levels organisms share, the more characteristics they will have in common

Binomial Nomenclature

•Naming method consisting of two words•Genus and Species•Genus must be capitalized

•All must be underlined or italicized

•Species is lower case

• Ex. Homo sapiens

Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Ursidae Genus: Ailuropoda Species: melanoleuca Ailuropoda melanoleuca

Kingdom Animalia Phylum Chordata Class Mammalia Order Cetacea Family Delphinidae Genus Tursiops Species truncates Tursiops truncates

Ursus horribilis

7 Levels of Classification Mnemonic Device

You can remember the correct classification sequence from the largest (most general) to the

smallest (most specific) group. Just remember the following sentence:

“Kings Play Cards On Fat Green Stools”

The first letter of each word is the same as the first letter of each classification level.

Assignment:in your field guide, create a color illustration of the mnemonic you think would be the most helpful and

interesting to remember. The illustration:• (1) must be neat and colorful • (2) must take up a whole page

• (3) must include the mnemonic phrase in large, neat print for a title.