30 Questions
Which scientist attempted a more scientific basis for classification using simple morphological characters?
Aristotle
In Linnaeus' time, how many kingdoms were included in the classification system?
Two
What was the main limitation of the two kingdom classification system used for a long time?
It did not distinguish between eukaryotes and prokaryotes
Besides gross morphology, what other characteristics were felt necessary to include in classification systems?
Cell structure, nature of wall, mode of nutrition, habitat, methods of reproduction, evolutionary relationships
Which kingdoms have been a constant under all different classification systems?
Plant and animal
What was the main reason for the inadequacy of the two kingdom classification system?
A large number of organisms did not fall into either category
What did Aristotle divide animals into?
Those with red blood and those without
What was the need for including other characteristics in classification systems?
To have a more comprehensive understanding of organisms
What has happened to the understanding of what groups/organisms should be included under the plant and animal kingdoms over time?
It has been changing
How many changes have classification systems for living organisms undergone over time?
Several
Which kingdom was created to group together all prokaryotic organisms?
Kingdom Monera
Which kingdom brought together Chlamydomonas and Paramoecium, which were previously placed in different kingdoms?
Kingdom Protista
What is the main criteria for the classification system to be phylogenetic?
Evolutionary relationships
Why were Chlamydomonas and Chlorella placed in Kingdom Protista?
Because they lacked cell walls
What is the main reason for the changes in classification systems over time?
Improvement in understanding of characteristics and evolutionary relationships
Which classification system reflects not only morphological, physiological, and reproductive similarities but also evolutionary relationships?
Five kingdom classification system
What is the main limitation of the two kingdom classification system?
It does not consider evolutionary relationships
What is the main reason for placing Chlamydomonas and Chlorella in Kingdom Protista?
They have cell walls
Who attempted to create a classification system based on simple morphological characters?
Linnaeus
What is the main characteristic that distinguishes Kingdom Fungi?
Organisms with cell walls
Which scientist proposed the Five Kingdom Classification system?
R.H. Whittaker
How many kingdoms were defined in the Five Kingdom Classification system?
Five
What were the main criteria used by R.H. Whittaker for classification in the Five Kingdom Classification system?
Cell structure, body organization, mode of nutrition, reproduction, and phylogenetic relationships
What is the name of the domain proposed in the three-domain system?
Archaea
Which kingdom was divided into two domains in the three-domain system?
Monera
What is the total number of kingdoms in the six kingdom classification system?
Six
What characteristic unified the organisms included in the 'Plants' kingdom in earlier classification systems?
Cell wall composition
Which two groups were placed together under the 'Algae' category in the earlier classification systems?
Chlamydomonas and Spirogyra
What is the main difference in the cell wall composition between fungi and green plants?
Fungi have chitin in their cell walls, while green plants have cellulose
Which of the following was NOT included in the Five Kingdom Classification system?
Archaea
Test your knowledge of plant classification with this quiz! From Aristotle's early attempts to modern scientific criteria, explore the history and principles of classifying plants based on their morphological characters.
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