Diversity 1/3

Question 1

Who tried to classify organisms?

Answer 1

Charaka, Aristotle, Carolus Linnaeus, Charles Darwin, Ernst Haekel, Robert Whittaker, Carl Woese

Question 2

Why do we need to classify organisms?

Answer 2

To study them and true characteristics easily.

Question 2

What is a characteristic?

Answer 2

A particular form or a particular function.

Question 4

What is a characteristic?

Answer 4

A particular form or a particular function.

Question 5

Characters on the basis of which organisms are classified

Answer 5

Cell structure complexity
Body structure complexity
Mode of nutrition
Lifestyle
Organisation in plants
Organisation in animals

Question 6

Hierarchy of classification

Answer 6

Kingdom
 Phylum/Division
  Class
   Order
    Family
     Genus
      Species

Question 7

Monera

Answer 7

Prokaryotic
Auto/Hetero
Unicellular
Blue-green algae, mycoplasma

Question 8

Protista

Answer 8

Unicellular
Eukaryotic
Auto/Hetero
Appendages for locomotion(cilia, flagella)
Unicellular algae, diatoms of of protozoans

Question 9

Fungi

Answer 9

Saprophytic
Eukaryotic
Chitin cell wall
Yeast, mushroom, etc.

Question 10

Plantae

Answer 10

Multicellular
Eukaryotic
Cell walls
Photosynthesis

Question 11

Animalia

Answer 11

Multicellular
Eukaryotic
Heterotrophic
No cell walls
Motile

Question 12

Divisions in Plantae

Answer 12

Well differentiated body
Specialised tissues for transport of food and water (phloem and xylem)
Ability to bear seeds
Seeds enclosed within fruits

Question 13

Thallophyta

Answer 13

No well differentiated body
Plant bodies are called thallum
Predominantly aquatic
Spyrogyra, cladophora

Question 14

Bryophyta

Answer 14

Usually aquatic
Differentiated into stem and leaf-like structure
No special tissues
Marcentia

Question 15

Pteridophyta

Answer 15

Differentiated into root, stem and leaves
Special tissues for conduction of water
Hidden reproductive systems and produce sperms.
Fern, Marcalia

Question 16

Gymnosperms

Answer 16

Naked seeds
Perennial
Evergreen
Woody
No fruit-covered seeds
Pine, deodar

Question 16

Angiosperms

Answer 16

Fruit-covered seeds
Flowering plants
Monocots and dicots
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Rice and wheat.  Almond, cashew.