*Unit 9 Part 1: Classification

Question 1

How many known species of organisms are there?

Answer 1

13 Billion

Question 2

This is only what percentage of organisms that has ever lived?

Answer 2

5%

Question 3

With regard to biological diversity, new organisms are still being…

Answer 3

found & identified.

Question 4

Classification

Answer 4

The arrangement of organisms into orderly groups based on similarities and evolutionary relationships

Question 5

Taxonomy

Answer 5

The science of identifying, classifying, and naming organisms

Question 6

Taxon

Answer 6

A category into which related organisms are placed
There is a hierarchy of groups from broadest to most specific.
EX. Domain, Class, Family

Question 7

There is a _____ of groups from _____ to most _____.

Answer 7

Hierarchy, Broadest, Specific

Question 8

With regard to taxon, domain is…

Answer 8

the most inclusive and broadest.

Question 9

With regard to taxon, species is…

Answer 9

the least inclusive and most specific.

Question 10

What is the sentence to remember the order of classification?

Answer 10

Dumb King Phillip Came Over For Grape Soda.

Question 11

What is the DOMAIN of humans?

Answer 11

Eukaryote

Question 12

What is the KINGDOM of humans?

Answer 12

Animalia

Question 13

What is the PHYLUM of humans?

Answer 13

Chordata

Question 14

What is the CLASS of humans?

Answer 14

Mammalia

Question 15

What is the ORDER of humans?

Answer 15

Primates

Question 16

What is the FAMILY of humans?

Answer 16

Hominidae

Question 17

What is the GENUS of humans?

Answer 17

Homo

Question 18

What is the SPECIES of humans?

Answer 18

Homosapien

Question 19

What are the four benefits of classifying?

Answer 19

~Accurately and uniformly names organisms
~Prevents misnomers such as starfish and jellyfish that are not really fish
~Uses same language for all names
~Modern classification systems can incorporate new scientific discoveries

Question 20

What language is used for classification?

Answer 20

Latin or some Greek

Question 21

Who was Carolus Linnaeus?

Answer 21

~Lived from 1707 to 1778
~18th century taxonomist
~Classified organisms by their structure
~Developed bionomial nomenclature naming system still used today

Question 22

Who was an 18th century taxonomist?

Answer 22

Carolus Linnaeus

Question 23

Who developed bionomial nomenclature naming system still used today?

Answer 23

Carolus Linnaeus

Question 24

Binomial Nomenclature

Answer 24

~2-word naming system for scientific names (Genus and Species)
~Latin or Greek
~Italicized when typed, underlined when handwritten
~Genus is Capitalized
~species is lowercase

Question 25

Two organisms with the same _____ are more closely related than two with the same _____.

Answer 25

Genus, species

Question 26

What is the 2-word naming system for scientific names?

Answer 26

Binomial Nomenclature

Question 27

Which two are more closely related?
A. Ailuropda melanoleuca
B. Ursus maritimus
C. Ursus arctos

Answer 27

B and C

Question 28

Dichotomous Keys

Answer 28

~Used to identify organisms
~Start at beginning and follow a series of either/or steps
~Based on observable characteristics

Question 29

What is the name of the tool used to identify organisms by starting at the beginning and following a series of either/or steps?

Answer 29

Dichotomous Keys