Module 4 : Section 3 - Classification Basics

Question 1

Why do you classify

Answer 1

To help identify species
To predict characteristics
To find evolutionary links
To make the study of living things more manageable

Question 2

How do you classify

Answer 2

Observable characteristics (gross and microscopic)
Biochemistry (DNA, Proteins, rRNA)

Question 3

What is classification

Answer 3

The act of arranging organisms into groups based on similarities and differences.

Question 4

What is taxonomy

Answer 4

The study of classification

Question 5

How many levels are there in a taxonomic hierarchy

Answer 5

Eight levels called taxonomic groups

Question 6

What are the three large groups called

Answer 6

Domains

Question 7

How are similar organisms sorted

Answer 7

They are sorted into one of three domains

Question 8

What is the level below domain

Answer 8

Kingdom

Question 9

What is the level below kingdom

Answer 9

Phylum

Question 10

What is the level below

Answer 10

Class

Question 11

What is the level below class

Answer 11

Order

Question 12

What is the level below order

Answer 12

Family

Question 13

What is the level below family

Answer 13

Genus

Question 14

What is the level below genus

Answer 14

Species

Question 15

What type of naming system is used in classification

Answer 15

Binomial Naming system

Question 16

What is every organism given in terms of naming

Answer 16

They are all given one internationally accepted scientific name in Latin that has two parts

Question 17

What is the first part of the name called

Answer 17

A genus (always has a capital)

Question 18

The second part of the name is called..

Answer 18

Species (always has a lower case)

Question 19

What does the binomial system help to avoid

Answer 19

Confusion of using common names

Question 20

What happens as you move down the taxonomic hierarchy

Answer 20

As you move down the hierarchy there are more groups at each level but fewer organisms in each group

Question 21

Species only contain……

Answer 21

One type of organism

Question 22

Organism can be placed into one of five …..

Answer 22

Kingdoms

Question 23

What are the five kingdom names

Answer 23

Prokaryotae
Protoctista
Fungi
Plantae
Animalia

Question 24

Give an example of an organism in prokaryotae

Answer 24

Bacteria

Question 25

Give an example of an organism in protoctista

Answer 25

Algae, Protozoa

Question 26

Give an example of an organism in fungi

Answer 26

Moulds, yeasts, mushrooms

Question 27

Give an example of an organism in plantae

Answer 27

Mosses, ferns, flowering plants

Question 28

Give an example of an organism in animalia

Answer 28

Roundworms, molluscs, insects, fish, reptiles, birds, mammals

Question 29

What are the features of an organism in the prokaryotae kingdom

Answer 29

Prokaryotic, unicellular, no nucleus, less than 5 micrometers

Question 30

What are the features of an organism in the protoctista kingdom

Answer 30

Eukaryotic cells, usually live in water, single celled or simple multicellular organisms

Question 31

What are the features of an organism in the fungi kingdom

Answer 31

Eukaryotic, chitin cell wall, saprotrophic, single celled or multicellular organisms

Question 32

What are the features of an organism in the plantae kingdom

Answer 32

Eukaryotic multicellular cell walls made of cellulose Can photosynthesise Contain chlorophyll Autotrophic

Question 33

What does saprotrophic mean

Answer 33

Can absorb substances from dead or decaying organisms

Question 34

What does autotrophic mean

Answer 34

They produce their own food

Question 35

What are the features of an organism in the animalia kingdom

Answer 35

Eukaryotic Multicellular No cell wall Heterotrophic

Question 36

What does heterotrophic mean

Answer 36

It consumes plants and animals

Question 37

What is phylogeny

Answer 37

The study of the evolutionary history of groups of organisms

Question 38

What does phylogeny tell us

Answer 38

Who is related to whom and how closely related they are

Question 39

What have all organism evolved from

Answer 39

Shared common ancestors

Question 40

How can organism that have been evolved from shared ancestors be represented

Answer 40

In a phylogenetic tree

Question 41

What does the phylogenetic tree show

Answer 41

The relationships between members of the hominidae family (great apes and humans)

Question 42

In a phylogenetic tree what does the first branch off point represent

Answer 42

A common ancestor of all the family members

Question 43

The common ancestor of all the family members is…

Answer 43

Now extinct

Question 44

After the first branch point what do the following branch points represent what

Answer 44

Another common ancestor from which a different group diverged