B15.9 Classification

Question 1

What is classification ?

Answer 1

Organism that have been classified based on their observable characteristics and behaviours

Question 2

What did Carl Linnaeus do ?

Answer 2

Proposed the initial five kingdom classification system used by scientists

Question 3

What was the original system of classification by Linnaeus ?

Answer 3

Phylum
Class
Order
Family
Genus
Species

Question 4

What are the five kingdoms ( Linnaeus)

Answer 4

Animals (all multicellular organisms)
Plants ( all green plants
Fungi( mounds, muschrooms and yeast)
Protists (amoeba, chlorella and plasmodium)
Prokaryotes ( bacteria, blue green algae)

Question 5

What did developments in technology leed to ?

Answer 5

A change in how organism are classified

Question 6

What are the four developments in technology that led to change in the classification of organisms?

Answer 6

1. Microscopes have allied better study of the internal structure of cells
2. Discovery of DNA in cells
3. Increased understanding of biochemical process
4. Discover of DNA structure in the 20th century

Question 7

How do we now classify organism ?

Answer 7

Based on cell structures, biochemistry and genetics rather than observable characteristics and behaviors