Essential Question What is classifying VOCABULARY Classification Dichotomous
Essential Question: What is classifying? VOCABULARY: Classification Dichotomous Key
Objectives: 1. You will be able to explain why classification systems are important. 2. You will be able to demonstrate your understanding with a dichotomous key.
How many different types of music are there? Rap, classic … Country, heavy metal … Rock, dance … Hip hop, children’s …
Could you imagine shopping at a music store which did not separate their CD’s by type? Or artist But just left them in a pile!
IMAGINE: Shopping at a shoe store where boys, girls, men, women’s and kids shoes were all mixed together? Would it work? Would you go back? How are shoe stores typically classified?
Why do Scientists Classify? To make things easier and To groups things
Classification: 1. organization into groups or categories. 2. Categorization of a population by common characteristics which the population has or does not have. 3. Make sure characteristics are observations and not inferences !
INSECTS
Two Group System: Dichotomous Key Those with wings INSECTS Those without wings
Two Group System: Dichotomous Key INSECTS Those with wings Those without wings
Animals
Animals WITH 4 legs Animals NOT 4 legs
Animals WITH 4 legs Animals NOT 4 legs
Dichotomous Key 2 Groups 2 Levels Animals with 4 legs Has a Tail Animals NOT with 4 legs Has wings No Tail No wings
Dichotomous Key Animals 2 Groups 2 Levels Animals with 4 legs Has a Tail No Tail Animals with 2 legs Has wings No wings
What is a scientific name? w Combination of the genus and species name of an organism w Scientific names of organisms are always italicized or underlined: (Genus is capitalized; species name is lower-case)
What is Genus? • A genus consists of a group of closely related organisms • Other animals in the Canis genus include dogs and coyotes • The genus name is always Capitalized
What is Species? • A species consists of animals that can mate and produce fertile offspring • Only grey wolves are known as lupus. • The species name is always lowercase
The End!!
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