1. CLASSIFYING ORGANISMS
LS CH 7 SEC 4

2. GOAL/PURPOSE
STUDENTS WILL BE ABLE TO EXPLAIN WHY BIOLOGISTS CLASSIFY ANIMALS.
RELATE THE LEVELS OF CLASSIFICATION BETWEEN ORGANISMS
LIST CHARACTERISTICS USED TO CLASSIFY ORGANISMS INTO GROUPS.

3. WHY CLASSIFY?
KEY- SCIENTIST HAVE IDENTIFIED MORE THAN 1.5 MILLION SPECIES
KEY- SCIENTIST GROUP ORGANISMS BASED ON SIMILARITIES IN THEIR FEATURES, BEHAVIOR, AND DNA.
CLASSIFICATION- IS THE PROCESS OF GROUPING THINGS BASED ON THEIR SIMILARITIES

5. CONT’D
KEY- BIOLOGIST USE CLASSIFICATION TO ORGANIZE LIVING THINGS INTO GROUPS SO THAT THE ORGANISMS ARE EASIER TO STUDY.
TAXONOMY- IS THE SCIENTIFIC STUDY OF HOW LIVING THINGS ARE CLASSIFIED

7. NAMING SYSTEM
KEY- TAXONOMY INVOLVES NAMING OF THE ORGANISM.
BINOMIAL NOMENCLATURE- THE NAMING SYSTEM USED THAT GIVES EACH ORGANISM A 2-PART NAME.
EX- FELIS CONCOLOR- MOUNTAIN LION OR FELIS DOMESTICUS- HOUSE CAT

8. CONT,D KEY -THE FIRST WORD IN THE SYSTEM IS CALLED THE GENUS.
GENUS- IS A CLASSIFICATION GROUPING THAT CONTAINS SIMILAR, CLOSELY RELATED ORGANISMS.
EX- ALL CATS BEGIN WITH ‘FELIS’ ‘felidae’plural
KEY- THE SECOND WORD IN THE NAME OFTEN DESCRIBES A DISTINCTIVE FEATURE OF AN ORGANISM, SUCH AS WHERE IT LIVES OR ITS APPEARANCE.

10. BrainPOP

11. LEVELS OF CLASSIFICATION
KEY- MOST BIOLOGISTS TODAY CLASSIFY ORGANISMS INTO EIGHT LEVELS
KEY- THE MORE LEVELS THAT 2 ORGANISMS SHARE, THE MORE CHARACTERISTICS THEY HAVE IN COMMON.

13. THREE DOMAINS (BIG CATEGORIES)
1. BACTERIA-
2. ARCHEA-
3. EUKAYRA- INCLUDES THE PROTIST, FUNGI, PLANTS AND ANIMALS KINGDOMS
KEY- 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

14. DOMAIN- BACTERIA
PROKARYOTES- WHOSE CELLS LACK A NUCLEUS
KEY- FOUND EVERYWHERE IN YOUR FOOD, ON YOUR DESK, IN YOUR BODY
KEY- SOME ARE AUTOTROPHS (MAKE THEIR OWN FOOD) AND SOME ARE HETEROTROPHS (DON’T MAKE OWN FOOD)

15. DOMAIN- ARCHEA KEY – NAME MEANS “ANCIENT”
FOUND IN DEEP OCEAN VENTS AND OTHER EXTREME ENVIRONMENTS
HOT SPRINGS, SWAMPS, INTESTINES OF COWS
UNICELLULAR PROKARYOTES,
AUTO AND HETEROTROPHS

16. DOMAIN - EUKARYA
KEY- SCIENTIST CLASSIFY PROTIST, FUNGI, PLANTS, AND ANIMALS
EUKARYOTES- ORGANISMS WITH CELLS THAT CONTAIN NUCLEI
FROM SEAWEEDS, TO MUSHROOMS, TO TOMATOES TO DOGS ALL FALL INTO DOMAIN EUKARYA

17. BRAINPOP

18. WRITE THE QUESTIONS AND ANSWERS
1- WHY DO BIOLOGIST CLASSIFY?
2- LIST THE LEVELS OF CLASSIFICATION BEGINNING WITH DOMAIN
3- SEARCH THE CLASSIFICATION OF HUMANS. NAME THE EIGHT LEVELS.