Biological classification 4.3.1

Question 1

What are the rankings of taxonomy?

Answer 1

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

Question 2

Define classification

Answer 2

The process of sorting organisms into groups based on their characteristics

Question 3

What is the scientific study of classification called?

Answer 3

Taxonomy

Question 4

Why classify?

Answer 4

• Help see the relationships between species
• Make the study of living things more manageable
• Make it easier to identify organisms

Question 5

Is their overlap in taxonomic levels?

Answer 5

No

Question 6

What is the basic unit of classification?

Answer 6

Species

Question 7

What are organisms divided into groups based upon?

Answer 7

Similarities, differences, and evolutionary history (phylogeny)

Question 8

Describe domain

Answer 8

Highest taxonomic rank
Archaea, Eubacteria, Eukaryote

Question 9

What are the 3 domains?

Answer 9

Archaea, Eubacteria, Eukaryotes

Question 10

Describe the 5 kingdoms

Answer 10

Traditionally 5 kingdoms - plantae, Animalia, fungi, protoctista, prokaryote

Question 11

Describe phylum

Answer 11

Groups organisms according to body plan (backbone or not etc.)

Question 12

Describe class

Answer 12

Groups organisms to do with general trait (number of legs etc.)

Question 13

Describe order

Answer 13

Groups according to organisms nature (carnivore/herbivore)

Question 14

Describe family

Answer 14

Groups of similar genera, based on reproductive characteristics

Question 15

Describe genus

Answer 15

Groups of closely related species

Question 16

Describe species

Answer 16

A group of organisms that can interbreed to produce fertile offspring

Question 17

What does the scientific name consist of?

Answer 17

Two latin words (genus and species)

Question 18

What is the system of naming a species called?

Answer 18

A binomial system

Question 19

Give an example of a binomial naming system

Answer 19

Cats
- Panthera Leo - lion
- Panthera tigris - tiger

Question 20

Why can’t we just use common names when scientifically naming a species?

Answer 20

• The same organism may have completely different common names in different parts of one country
• Different common names are used in different countries