1. Who suggested the five kingdom of classifications?
a) Robert Hooke
b) Joseph Dalton Hooker
c) Carolus Linnaeus
d) Whittaker
Explanation: Whittaker
2. The earliest classification used only
a) Physiological characters
b) Gross anatomical characters
c) Gross morphological characters
d) All of these
Explanation: The earliest classification used only gross morphological characters.
3. Artificial systems gave equal weightage to
a) Morphological and anatomical characters
b) Vegetative and sexual characters
c) Vegetative and anatomical characters
d) Morphological and sexual characters
Explanation: Artificial systems gave equal weightage to vegetative and sexual characters.
4. _______ characters are easily affected by environment
a) Sexual
b) Somatic
c) Anatomical
d) All of these
Explanation: Somatic characters are easily affected by environment.
5. Natural classification system developed were
a) Natural affinities amongst organism
b) Ultra structure and anatomy
c) Embryology
d) All of these
Explanation: All of these
6. The classification based on evolutionary history was
a) Phylogenetic classification
b) Artificial classification
c) Numerical classification
d) None of these
Explanation: The classification based on evolutionary history was phylogenetic classification.
7. Numbers and codes are assigned to the characters in
a) Cytotaxonomy
b) Chemotaxonomy
c) Numerical taxonomy
d) None of these
Explanation: Numbers and codes are assigned to the characters in numerical taxonomy.
8. Chemotaxonomy is based on
a) Information of chromosome number, structure and behaviour.
b) Chemical constituents of plants
c) All observable characters
d) Only sexual characters
Explanation: Chemotaxonomy is based on chemical constituents of plants.
9. According to phylogenetic classification the organisms belonging to same taxa
a) Are same in anatomy
b) Have same genetic constituent
c) Have a common ancestor
d) Have all same characteristics
Explanation: Have a common ancestor
10. The characters used to classify organism when no fossil evidence is supportive is
a) Numerical taxonomy
b) Cytotaxonomy
c) Chemotaxonomy
d) All of these
Explanation: All of these
11. Chlorophyll bearing, thalloid, simply, autotropic and mainly aquatic organisms are
a) Bryophytes
b) Protist
c) Algae
d) All of these
Explanation: Chlorophyll bearing, thalloid, simply, autotropic and mainly aquatic organisms are Algae.
12. Filamentous forms of algae are
a) Ulothrix
b) Spirogyra
c) Chlamydomonas
d) Both (a) and (b)
Explanation: Filamentous forms of algae are Ulothrix and Spirogyra.
13. Volvox is a
a) Unicellular algae
b) Filamentous algae
c) Colonial algae
d) Symbiotic algae
Explanation: Volvox is a Colonial algae.
14. The modes of reproduction found in algae are
a) Vegetative
b) Asexual
c) Sexual
d) All of these
Explanation: All of these
15. Vegetative reproduction in algae is by
a) Binary fusion
b) Fragmentation
c) Budding
d) Cyst formation
Explanation: Vegetative reproduction in algae is by Fragmentation.
16. Spore formation in algae occur during
a) Vegetative reproduction
b) Asexual reproduction
c) Sexual reproduction
d) During germination
Explanation: Spore formation in algae occur during asexual reproduction.
17. Isogamy is seen in
a) Chlamydomonas
b) Spirogyra
c) Both (a) and (b)
d) None of these
Explanation: Isogamy is seen in Chlamydomonas and Spirogyra.
18. Algae possesing both isogamy and anisogamy is
a) Chlamydomonas
b) Volvox
c) Spirogyra
d) Fucus
Explanation: Algae possesing both isogamy and anisogamy is Chlamydomonas.
19. Male gamete is small and motile and female gamete is large and immotile in
a) Fucus
b) Spirogyra
c) Ulothrix
d) All of these
Explanation: Male gamete is small and motile and female gamete is large and immotile in fucus.
20. 50 percent CO2 fixation on earth is carried out by
a) Protist
b) Higher plants
c) Algae
d) None of these
Explanation: 50 per cent CO2 fixation on earth is carried out by algae.