• Diversity in the Animal Life - 2
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Diversity in the Animal Life - 2

Description: Diversity in the Animal Life - II
Number of Questions: 25
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Tags: Diversity in the Animal Life - II Phylum Arthropoda Phyllum: Mollusca Phylum Coelenterata (Coelenterates) Phylum Echinodermata Protochordata Pisces Amphibia Reptilia Vertebrate Mammalia
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An organism has four pairs of walking legs on thorax, trachea for respiration and lacks wings and antennae. In which class will you classify the organism?

  1. Arachnida

  2. Insecta

  3. Myriapoda

  4. Crustacea

  5. Nematoda

Show answer
Correct Option: A
Explanation:

The organism will be classified in class Arachnida as the organism shows the features of phylum Arthropoda and class Arachnida.

Which of the following is not a characteristic feature of class Myriapoda?

  1. Trunk divided into thorax and abdomen

  2. Segmented body

  3. Presence of pair of antennae

  4. Respiration through skin

  5. Three pairs of jaws

Show answer
Correct Option: D
Explanation:

The organisms of class Myriapoda respire through trachea.

Which of the following organisms belongs to class Arachnida?

  1. Dragonfly

  2. Tick

  3. Star fish

  4. Crabs

  5. Octopus

Show answer
Correct Option: B
Explanation:

Organisms like scorpions, spiders, mites, ticks etc. belong to class Arachnida.

Which of the following is not a characteristic feature of snails?

  1. Triploblastic

  2. Coelomate

  3. Aquatic

  4. Segmented body

  5. Hard calcareous shell

Show answer
Correct Option: D
Explanation:

Snails are terrestrial or aquatic, unsegmented and soft body animals.

Which of the following functions is performed by ctenidia?

  1. Respiration

  2. Excretion

  3. Digestion

  4. Locomotion

  5. Reproduction

Show answer
Correct Option: A
Explanation:

Ctenidia are the gills of molluscs and help in respiration.

The organisms of ____________ have pentamerous symmetry.

  1. Annelida

  2. Echinoderms

  3. Mollusca

  4. Arthropods

  5. Coelenterates

Show answer
Correct Option: B
Explanation:

Echinoderms have pentamerous symmetry as their body surfaces are marked with five radial arms.

Which of the following organisms does not belong to phylum Mollusca?

  1. Chiton

  2. Pila

  3. Unio

  4. Antedon

  5. Octopus

Show answer
Correct Option: D
Explanation:

Antedon belongs to phylum Echinodermata.

Which of the following organisms does not belong to phylum Arthropoda?

  1. Cockroach

  2. Musca

  3. Dragonfly

  4. Earthworm

  5. Mosquito

Show answer
Correct Option: D
Explanation:

Earthworm belongs to phylum Annelida.

Which of the following organisms is called the Hemichordates?

  1. Balanoglossus

  2. Echinus

  3. Herdmania

  4. Holothuria

  5. Asterias

Show answer
Correct Option: A
Explanation:

In Balanoglossus, notochord is limited to anterior region of the body. They belong to phylum Hemichordate.

Which of the following organisms can regenerate their lost parts?

  1. Molluscs

  2. Annelides

  3. Echinoderms

  4. Insects

  5. Hemichordates

Show answer
Correct Option: C
Explanation:

Echinoderms have a peculiar feature of regeneration of lost parts.

Which of the following organisms belongs to Phylum Arthropoda?

  1. Ascaris

  2. Centipede

  3. Earthworm

  4. Rat

  5. Pila

Show answer
Correct Option: B
Explanation:

Centipede belongs to class Myriapoda and phylum Arthropoda as its body is worm like containing many segments. They respire through trachea.

Which of the following is absent in cartilaginous fishes?

  1. Gill slits

  2. Operculum

  3. Flesh fins

  4. Ventral mouth

  5. Gills

Show answer
Correct Option: B
Explanation:

Operculum, i.e. gill cover is absent in cartilaginous fishes and gill slits are visible.

Which of the following is not a characteristic feature of Urochordates?

  1. Notochord is present in adult stage.

  2. Limbs are absent.

  3. Body is bag shaped.

  4. Body is covered by tunic in adult stage.

  5. Dorsal tubular nerve cord is present.

Show answer
Correct Option: A
Explanation:

Notochord is present only in larval stages in the organisms that belong to sub-phylum Urochordata.

Which of the following organisms is/are not a Urochordate?

  1. Herdmania

  2. Doliolum

  3. Pyrosoma

  4. Amphioxus

  5. Doliolum and Amphioxus

Show answer
Correct Option: D
Explanation:

Amphioxus belongs to sub-phylum Cephalochordate and possesses dorsal tubular nerve cord in adult stage.

Which of the following is not a characteristic feature of Hemichordates?

  1. Body is bilaterally symmetrical.

  2. The organisms respire through gill slits.

  3. The organisms are aquatic.

  4. Notochord is limited to anterior region of body.

  5. Body is divided into proboscis, collar and trunk.

Show answer
Correct Option: C
Explanation:

Hemichordates are marine worm-like animals found in muddy water in coastal areas.

Which of the following is not a characteristic feature of aves?

  1. Endothermic

  2. Four chambered heart

  3. Absence of teeth

  4. Soft and moist body

  5. Hollow bones

Show answer
Correct Option: D
Explanation:

Amphibians have moist body due to the presence of mucus glands. However, aves are endothermic animals. They have feathers and scales covering their bodies.

Which of the following reptiles (exceptional) has four chambered heart?

  1. Tortoise

  2. Snake

  3. Turtle

  4. Crocodile

  5. Lizard

Show answer
Correct Option: D
Explanation:

Crocodile has four chambered heart. However, other organisms that belong to class Reptilia have three chambered heart.

In which class will you classify vertebrates that live partly on land and partly in water?

  1. Osteichthyes

  2. Amphibia

  3. Reptilia

  4. Chondrichthyes

  5. Urochordata

Show answer
Correct Option: B
Explanation:

Amphibians can live partly on land and partly in water.

Which of the following is not a characteristic feature of Rohu, a bony fish?

  1. Bony skeleton

  2. Terminal mouth

  3. Seven pairs of gills

  4. Fins with bony rays

  5. Gill slits covered by an operculum

Show answer
Correct Option: C
Explanation:

Four pairs of gills are present in bony fishes.

Which of the following organisms does not belong to class Mammalia?

  1. Kangaroo

  2. Human

  3. Whale

  4. Scoliodon

  5. Rat

Show answer
Correct Option: D
Explanation:

Scoliodon is a cartilaginous fish, which belongs to phylum Pisces and sub-phylum Chondrichthyes.

Which of the following is an egg-laying mammal?

  1. Duck-billed platypus

  2. Kangaroo

  3. Rat

  4. Dinosaur

  5. Ostrich

Show answer
Correct Option: A
Explanation:

Duck-billed platypus and spiny ant eater are egg laying mammals and are called oviparous.

Which of the following mammals gives birth to poorly developed young ones and keeps them in brood pouches till they develop completely?

  1. Kangaroo

  2. Bat

  3. Dog

  4. Monkey

  5. Whale

Show answer
Correct Option: A
Explanation:

Kangaroos give birth to poorly developed young ones and keep them into their pouches till they develop completely.

Which of the following pairs of organisms and their classes is correctly matched?

  1. Rohu - Chondrichthyes

  2. Scoliodon - Osteichthyes

  3. Snake - Amphibia

  4. Rhinoceros - Mammalia

  5. Bat - Aves

Show answer
Correct Option: D
Explanation:

Rohu - Osteichthyes, Scoliodon - Chondrichthyes, Snake - Reptile, Rhinoceros - Mammalia and Bat - Mammalia.

Which of the following is not a characteristic feature of amphibians?

  1. Presence of mucus glands in the skin

  2. Two pairs of limbs

  3. Four chambered heart

  4. Lungs for breathing

Show answer
Correct Option: C
Explanation:

Three chambered heart is present in amphibians.

Which of the following is not a characteristic feature of class Mammalia?

  1. Possess mammary glands

  2. Presence of sweat and oil glands

  3. Presence of internal ear

  4. Separate sexes

Show answer
Correct Option: C
Explanation:

External ears (pinna) are present in mammals.

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