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Diversity in Living Organisms (Class IX)

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Flagella are long whip-like structures that help in movement. Which of the following protists has flagella?

  1. Paramecium

  2. Amoeba

  3. Chlorella

  4. Rhizopoda

  5. Euglena


Correct Option: E
Explanation:

This is the correct answer as euglena uses flagella for locomotion.

Fungi are saprophytes or parasitic. Which of the following is not a fungus?

  1. Spirogyra

  2. Rhizopus

  3. Aspergillus

  4. Penicillium

  5. Agaricus


Correct Option: A
Explanation:

This is the correct answer as spirogyra is an autotroph with a thaloid body. It is an alga.

Moss is a radially symmetrical leafy bryophyte with multicellular rhizoids. Which of the following is/are the example(s) of moss?

a. Funaria b. Bryum c. Marchantia

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a, b and c


Correct Option: D
Explanation:

This is the correct answer. Both funaria and bryum are radially symmetrical leafy bryophytes with multicellular rhizoids and are classified as mosses.

Match the following:

 
a. Animalia 1. Unicellular organisms
b. Plantae 2. Lacks chlorophyll and obtains food through absorption
c. Fungi 3. Kingdom of multicellular consumers with indigestion, digestion and assimilation processes of nutrition
d. Protista 4. Bacteria and cyanobacteria
e. Monera 5. All photosynthetic green plants
  1. a - 2, b - 4, c - 2, d - 1, e - 3

  2. a - 4, b - 5, c - 1, d - 3, e - 2

  3. a - 5, b - 2, c - 3, d - 1, e - 4

  4. a - 3, b - 5, c - 2, d - 1, e - 4

  5. a - 3, b - 5, c - 1, d - 4, e - 2


Correct Option: D
Explanation:

This is the correct matching as kingdom Animalia is the kingdom of multicellular consumers with indigestion, digestion and assimilation processes of nutrition. Kingdom Plantae consists of all photosynthetic green plants. Kingdom Fungi lacks chlorophyll and obtains food through absorption. Kingdom Protista consists of all unicellular organisms. Kingdom Monera consists of all bacteria and cyanobacteria.

Which of the following statements is/are correct?

a. The branch of science that deals with classification is called taxonomy. b. E. H. Hackel proposed five-classification system of organisms. c. Eichler divided plant kingdom into two subkingdoms.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. a only


Correct Option: C
Explanation:

This is the correct answer as both statements are correct. Eichler divided plant kingdom into Cryptogamae and Phanerogamae.

Organisms are classified on basis of their species. What is a group of closely related species called which has certain common characters?

  1. Family

  2. Order

  3. Class

  4. Phylum

  5. Genus


Correct Option: E
Explanation:

This is the correct answer as genus is a group of closely related species having certain common characters.

All of the following are gymnosperms, except

  1. pinus

  2. cycas

  3. cadrus

  4. thuja

  5. ferns


Correct Option: E
Explanation:

Ferns are pteridophyta plants.

Which of the following statements are correct?

a. Xylem vessels are present in angiosperms. b. Naked embryos of pteridophytes are called spores. c. Reproductive organs are inconspicuous in phanerogams.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. a, b and c


Correct Option: B
Explanation:

This is the correct answer as both statements are correct.

All of the following belong to the phylum Porifera, except

  1. sycon

  2. euplectella

  3. euspongia

  4. aurelia

  5. spongilla


Correct Option: D
Explanation:

This is the correct answer as Aurelia is a type of jellyfish and belongs to the phylum Coelenterata.

Which of the following statements is/are correct?

a. Pteridophyta plants have a thalloid body. b. They have specialised tissue for conduction of water and other substances. c. They are also known as lower plants.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a, b and c


Correct Option: B
Explanation:

This is the correct answer as this is the only correct statement. They have specialised tissue for conduction of water and other substances from one part of the plant body to another.

Which of the following statements is/are correct?

a. The body of animals of phylum Platyhelminthes is dorsoventrally flattened. b. Animals of this species are hermaphrodites. c. There is a proper body cavity in animals of this species.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. b and c


Correct Option: D
Explanation:

This is the correct answer as these statements are correct.

Which of the following statements is/are incorrect?

a. Animals of phylum Coelenterata have a body made of two layers of cells. b. Animals of phylum Coelenterata have a bilaterally symmetrical body. c. Some of the animals of species Coelenterata live in colonies, while others have a solitary lifespan.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a and c


Correct Option: B
Explanation:

This is the correct answer as this statement is incorrect. They have a radially symmetrical body.

Which of the following animals belong to the phylum Nematoda?

a. Roundworm b. Tapeworm c. Hookworm d. Filarial worm

  1. a, b, c and d

  2. a, b and c

  3. a, b and d

  4. a, c and d

  5. b, c and d


Correct Option: D
Explanation:

This is the correct answer. Nematodes are small cylindrical or roundworms. Roundworm, hookworm and filarial worm are nematodes.

Which of the following statements is incorrect?

  1. Annelida have elongated and segmented body.

  2. Annelida are bilaterally symmetrical and triploblastic.

  3. Annelida have extensive organ differentiation.

  4. Reproduction in Annelida is by sexual means.

  5. The coelomic cavity of Annelida is blood-filled.


Correct Option: E
Explanation:

This statement is incorrect. Thus, it is the correct answer. The body cavity has organ differentiation, but it is not blood-filled in Annelida.

Which of the following statements is correct about Arthropoda?

  1. Arthropoda have an internal skeleton.

  2. Arthropoda have a reduced blood cavity filled with haemocoel.

  3. Arthropoda have a notochord.

  4. Arthropoda have dorsal nerve cord.

  5. Arthropoda have calcareous spines used as skeleton.


Correct Option: B
Explanation:

This is the correct answer as Arthropoda have a reduced blood cavity filled with haemocoel, i.e. the cavity is filled with blood.

Which of the following are classified under kingdom Monera?

a. Bacteria b. Chlamydomonas c. Blue-green algae d. Mycoplasm

  1. a, b, c and d

  2. a, b and c

  3. a, b and d

  4. a, c and d

  5. b, c and d


Correct Option: D
Explanation:

This is the correct answer as bacteria, cyanobacteria, i.e. blue-green algae and mycoplasm are classified as Monera.

Which of the following statements is/are correct?

a. Mollusca have a chitinious exoskeleton. b. Mollusca have an open circulatory system. c. Respiration in Mollusca is by gills.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. b and c


Correct Option: E
Explanation:

This is the correct answer as both statements are correct.

Which of the following statements is incorrect?

  1. Fish have a two-chambered heart.

  2. Frogs have a three-chambered heart.

  3. Lizards have a three-chambered heart.

  4. Pigeons have a two-chambered heart.

  5. Bats have a four-chambered heart.


Correct Option: D
Explanation:

This is the correct answer as this statement is incorrect. Pigeons are warm-blooded with a four-chambered heart.

Match the following:

 
Animal Class
a. Bat 1. Amphibia
b. Lizard 2. Aves
c. Frog 3. Mammal
d. Pigeon 4. Pisces
e. Fish 5. Reptilia
  1. a - 2, b - 4, c - 1, d - 5, e - 3

  2. a - 4, b - 3, c - 1, d - 5, e - 2

  3. a - 5, b - 4, c - 2, d - 1, e - 3

  4. a - 3, b - 4, c - 1, d - 5, e - 2

  5. a - 3, b - 5, c - 1, d - 2, e - 4


Correct Option: E
Explanation:

This is the correct matching. Bats are Mammals, Lizards are Reptiles, Frogs are Amphibians, Pigeons are Aves, Fish are Pisces.

Match the following:

 
Plant Plant Division
a. Spirogyra 1. Gymnosperm
b. Fern 2. Angiosperm
c. Funeria 3. Thallophyta
d. Pinus 4. Bryophyta
e. Mustard plant 5. Pteridophyta
  1. a - 5, b - 2, c - 1, d - 4, e - 3

  2. a - 4, b - 1, c - 3, d - 2, e - 5

  3. a - 3, b - 5, c - 4, d - 1, e - 2

  4. a - 5, b - 4, c - 3, d - 2, e - 1

  5. a - 1, b - 4, c - 3, d - 5, e - 2


Correct Option: C
Explanation:

This is the correct matching. Spirogyra is a Thallophyta, Fern is a Pteridophyta, Funeria is a Bryophyta, Pinus is a Gymnosperm, Mustard plant is an Angiosperm.

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