Classifing

Question 1

Humans classify things because

Answer 1

Convince
Study living things more manageable
Easier to identify living organisms
Help us see relationship between species

Question 2

Domain

Answer 2

Archaea, eubacteria and eukaryotae

Question 3

Kingdom

Answer 3

Plantae, animalia, fungi , protoctista

Prokaryotae

Question 4

Phylum

Answer 4

Body plan - backbone ?

Question 5

Class

Answer 5

General traits e.g number legs

Question 6

Order

Answer 6

Sun-division class
Additional info
E.g carnivore?

Question 7

Family

Answer 7

Closely related genera

Question 8

Genus

Answer 8

Closely related species

Question 9

Species

Answer 9

Basic unit of classification

Some variation but essentially same - can interbreed

Question 10

Human classification

Answer 10

Animalia 
Chordata
Mammalia 
Primate
Hominidae 
Homo 
Sapiens

Question 11

Binomial naming system

Answer 11

Genus specie

Question 12

Common name doesn’t work because:

Answer 12

• same organism may have completely different common name in different parts of a country
• translation of languages may give different common names

Question 13

Biological definition of species

Answer 13

A group of organisms that can freely interbreed to produce fertile offspring

Question 14

Phylogenetic definition of specie

Answer 14

A group of individual organisms that are very similar in appearance, anatomy, physiology, biochemistry and genetics

Question 15

Aristotle classified animals into 3 groups

Answer 15

Live and move on land
Live and move in water
Move through air

Other early classification systems of Linnaeus and other scientists were based on observable features but this limited it to features of organisms that you can see