Daily Warm-up

• What are the 8 classification categories in order starting with Domain ?

Pg. 46

Daily Warm-up• What is the first characteristic scientists

look for when they classify an animal?

What is life?Chapter 2 section 1

ANIMALS

PLANTS

FUNGI

PROTISTS

BACTERIA ARCHAEA

Classifying Organisms

Felis concolor (Mountain Lion)

Felis marmorata (marbled cat)

Felis domesticus (house cat)

Chapter 2 section 2

Vocabulary

• Classification- process of grouping things based on their similarities

• Taxonomy- scientific study of how things are classified• Binomial nomenclature-two name naming system• Genus-classification grouping that contains similar, closely

related organisms• Species-group of similar organisms that can mate with each

other and produce offspring• Prokaryotes-cell that lacks a nucleus (Bacteria/Archaea)• Nucleus-a dense area in the cell that contains nucleic acid-

direct cell activities.• Eukaryotes-cell that contains nucleus (Protist, Fungi, Plant,

Animal)

Scientific Name• An organisms scientific name is made up

of two parts. Genus is the first part and it is always capitalized. Species is the second part and it is not capitalized.

• Example Canis lupus

Daily Warm-upWhat classification category would two very similar species be in?

Chapter 2Section 2

Classification: Genus speciesScientific Name

Canis latransCanis familiarus

Canis rufus Canis lupus

Why do Scientists Classify?

Biologists use classification to organize living things into groups so that the organisms are easier to study.

Carolus Linnaeus (1707-1778)Father of Taxonomy

Each organism on earth is given a two-part scientific name.The name is in Latinand consists of Genus and species.

This is known as Binomial Nomenclature.

Domains and Kingdoms

Organisms are placed into domains and kingdoms based on their cell type, their ability to make food, and the number of cells in their bodies.

Open to page 47

Domain Eukarya

Scientists classify organisms in the

domain Eukarya into one of four kingdoms: Protists, Fungi, Plants, or Animals.

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

Classification Categories

Levels of Classification

The more classification levels that two organisms share, the more characteristics they have in common.

LeopardCheetah

WOLF

SEAL

RACCOON

KANGAROO

COYOTE

BADGER

Lion Distribution Tiger Distribution

SPECIATION

Assessment Questions• 1. Why do Biologists classify?• 2.Suppose someone tells you that a jaguarundi is classified in

the same genus as a housecat. What characteristics do you think a jaguarundi might have? (3)

• 3.What genus name would you expect a jaguarundi to have? • 4.List the (8) levels of classification, beginning with domain.

• 5.Woodchucks are classified in the same family as squirrels, but in a different family than mice. Do woodchucks have more characteristics in common with squirrels or mice?

• 6.What are three domains in which organisms are classified?

• 7. Which two domains include only organisms that are prokaryotes?

• 8. List the 4 Kindoms in the Domain Eukarya?• 9.What two–parts make up an organisms scientific name?

Assessment Questions Continued

• 3a. What are three domains in which organisms are classified?

• 3b. Which two domains include only organisms that are prokaryotes?

•

(A) Pan troglodytes, chimpanzee, modern(B) Australopithecus africanus, 2.6 My(C) Australopithecus africanus, 2.5 My(D) Homo habilis, 1.9 My(E) Homo habilis,1.8 My(F) Homo rudolfensis, 1.8 My(G) Homo erectus, 1.75 My(H) Homo ergaster (early H. erectus), 1.75 My(I) Homo heidelbergensis, 300,000 - 125,000 y(J) Homo sapiens neanderthalensis, 70,000 y(K) Homo sapiens neanderthalensis, 60,000 y(L) Homo sapiens neanderthalensis, 45,000 y(M) Homo sapiens sapiens, Cro-Magnon I, 30,000 y(N) Homo sapiens sapiens, modern