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NEET • BIOLOGY • ANIMAL KINGDOM

Animal kingdom practice · Medium

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61 Medium

61 of 292

Remembering +4 | -1

Which of the following groups includes only arthropods?

View answer and explanation

Correct option: B

Cockroach, scorpion, prawn

Option B (Cockroach, scorpion, prawn) is correct because all three organisms belong to the phylum Arthropoda, characterized by jointed appendages and an exoskeleton.

62 Medium

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Analyzing +4 | -1

Which of the following are the most distantly related to one another?

View answer and explanation

Correct option: A

Sunfish and dolphins

Option A (Sunfish and dolphins) is correct because sunfish are bony fish (Osteichthyes) and dolphins are mammals, representing a greater evolutionary distance compared to the other pairs.

63 Medium

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Understanding +4 | -1

How many animals given below in box. exhibit metamorphosis in their life cycle? Petromyzon. Ichthyophis, Chameleon, Pavo, Ascidia, Branchiostoma

View answer and explanation

Correct option: D

Option D (4) is correct because Petromyzon, Ichthyophis, Ascidia, and Chameleon exhibit metamorphosis in their life cycle.

64 Medium

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Understanding +4 | -1

Select the statement that explain neoteny

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Correct option: B

Larval stages become sexually mature

Option B (Larval stages become sexually mature) is correct because neoteny is defined as the retention of juvenile features in the adult form, leading to sexual maturity in the larval stage.

65 Medium

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Analyzing +4 | -1

How many among following characteristics are common between reptiles and birds without exception.

A. Four chambered heart
B. Scales
C. Warm blooded

D. Dioecious and internal fertilization
E. Oviparity and indirect development

View answer and explanation

Correct option: A

Option A is correct because only two characteristics, dioecious nature and internal fertilization, are common to all reptiles and birds without exception.

66 Medium

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Remembering +4 | -1

Coelom produced by splitting of mesoderm this condition is found in

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Correct option: C

Schizocoel

Option C (Schizocoel) is correct because Schizocoel is formed by the splitting of mesodermal tissue, a characteristic of protostomes like annelids.

67 Medium

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Remembering +4 | -1

Dugesia belongs to which class

View answer and explanation

Correct option: C

Turbellaria

Option C (Turbellaria) is correct because Dugesia, commonly known as planarians, belongs to the class Turbellaria within the phylum Platyhelminthes (flatworms).

68 Medium

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Remembering +4 | -1

Sea horse is

View answer and explanation

Correct option: D

A fish

Option D (A fish) is correct because a sea horse, despite its unusual appearance, is indeed a type of fish belonging to the family Syngnathidae.

69 Medium

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Understanding +4 | -1

How many of the following are characteristic of at least some members of the phylum cnidaria?
(A) A gastrovascular cavity (B) A Polyp stage (C) A Medusa stage (D) Cnidocytes (E) A Peudocoelom

View answer and explanation

Correct option: D

Four of these

Option D (Four of these) is correct because Cnidaria possess a gastrovascular cavity, can have a polyp stage, can have a medusa stage, and possess cnidocytes.

70 Medium

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Understanding +4 | -1

Osteichthyes and Chondrichthyes are similar in which of the following features?

View answer and explanation

Correct option: B

Presence of 10 pairs of cranial nerve and absence of neck

Option B (Presence of 10 pairs of cranial nerve and absence of neck) is correct because both Osteichthyes (bony fishes) and Chondrichthyes (cartilaginous fishes) have 10 pairs of cranial nerves and lack a distinct neck.

71 Medium

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Remembering +4 | -1

The secondary host of Taenia saginata is

View answer and explanation

Correct option: A

Cow

Option A (Cow) is correct because the secondary (intermediate) host of Taenia saginata (beef tapeworm) is the cow.

72 Medium

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Analyzing +4 | -1

In which of the following sets, groups are not correctly
matched phylum wise

View answer and explanation

Correct option: C

Gastropoda, Rhizopoda, Scaphopoda

Option C (Gastropoda, Rhizopoda, Scaphopoda) is correct because Rhizopoda is a class under the phylum Protozoa, while Gastropoda and Scaphopoda belong to the phylum Mollusca.

73 Medium

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Remembering +4 | -1

Which of the following does not belong to the class-Hexactinellida?

View answer and explanation

Correct option: B

Cliona

Option B (Cliona) is correct because Cliona belongs to the class Demospongiae, not Hexactinellida.

74 Medium

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Analyzing +4 | -1

Which set of animals doesn’t belong to the same phylum?

View answer and explanation

Correct option: D

Devil fish, King crab, Chiton

Option D (Devil fish, King crab, Chiton) is correct because Devil fish (Octopus) belongs to Mollusca, King crab belongs to Arthropoda, and Chiton belongs to Mollusca.

75 Medium

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Remembering +4 | -1

Which characteristic is not true for chordates?

View answer and explanation

Correct option: C

Heart is dorsal

Option C (Heart is dorsal) is correct because chordates have a ventral heart, not a dorsal heart.

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76 Medium

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Remembering +4 | -1

Aves are divided into the following sub-classes

View answer and explanation

Correct option: C

Archaeornithes and Neornithes

Option C is correct because Aves (birds) are divided into two subclasses: Archaeornithes (ancient birds, mostly extinct) and Neornithes (modern birds).

77 Medium

77 of 292

Remembering +4 | -1

All living members of _______ are ectoparasites on some fishes.

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Correct option: C

Cyclostomata

Option C (Cyclostomata) is correct because all living members of Cyclostomata (lampreys and hagfishes) are ectoparasites on some fishes.

78 Medium

78 of 292

Understanding +4 | -1

Read the following statements.
a) Devilfish and cuttle fish are the
members of the largest phylum.
b) Tapeworms are flatworms.
c) Both catfish and dog fish have similar
type of exoskeleton and endoskeleton as
well.
d) Both sea walnuts and sea cucumbers
exhibit radial symmetry.
Choose the correct set of statements from the given options.

View answer and explanation

Correct option: D

b and d

Option D (b and d) is correct because tapeworms are indeed flatworms, and both sea walnuts and sea cucumbers exhibit radial symmetry.

79 Medium

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Remembering +4 | -1

Dental formula of rabbit is

View answer and explanation

Correct option: A

\frac{{2033}}{{1023}}

Option A (

\frac{{2033}}{{1023}}

) is correct because it represents the number of incisors, canines, premolars, and molars in one half of the upper and lower jaws of a rabbit.

80 Medium

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Analyzing +4 | -1

Choose the odd one w.r.t. marsupial radiation.

View answer and explanation

Correct option: D

Lemur

Option D (Lemur) is correct because lemurs are primates found in Madagascar and are not part of the marsupial radiation seen in Australia and the Americas.

81 Medium

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Remembering +4 | -1

Cyclostomes have an elongated body bearing – paiers of gill silts for respiration.

View answer and explanation

Correct option: B

6-15 Pairs

Option B (6-15 Pairs) is correct because cyclostomes, such as lampreys and hagfishes, are characterized by having 6-15 pairs of gill slits for respiration.

82 Medium

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Remembering +4 | -1

Animals of the phyla ______ and – are exclusively marine

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Correct option: B

Ctenophora, Echinodermata

Option B (Ctenophora, Echinodermata) is correct because both Ctenophora (comb jellies) and Echinodermata (starfish, sea urchins, etc.) are exclusively marine phyla.

83 Medium

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Understanding +4 | -1

Which character is not same in Aves and mammals?

View answer and explanation

Correct option: C

Seven cervical vertebrae

Option A (Single systemic arch) is correct because birds have a single right systemic arch, while mammals have a single left systemic arch, making it a difference, not a similarity.

84 Medium

84 of 292

Understanding +4 | -1

The organisms with tissue grade level of organization and reproduce only by sexual means

View answer and explanation

Correct option: C

Ctenophora

Option C is correct because Ctenophora have tissue-level organization and reproduce only sexually.

85 Medium

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Understanding +4 | -1

Choose the correct combination of features of phylum Annelida?

View answer and explanation

Correct option: B

Bilaterally symmetrical, metameric segmentation, true coelom

Option B (Bilaterally symmetrical, metameric segmentation, true coelom) is correct because Annelida are characterized by bilateral symmetry, metameric segmentation (segmentation of the body), and a true coelom (body cavity).

86 Medium

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Remembering +4 | -1

Age of fishes is also known as

View answer and explanation

Correct option: C

Devonian era

Option C (Devonian era) is correct because the Devonian period is often referred to as the "Age of Fishes" due to the significant diversification and abundance of fish during that time.

87 Medium

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Remembering +4 | -1

Water vascular system is found in

View answer and explanation

Correct option: D

161

Option D (161) is correct because the water vascular system is a characteristic feature of Echinodermata, which corresponds to the phylum number 161 in some classification systems.

88 Medium

88 of 292

Understanding +4 | -1

Which of the following characters are shared by animals like Psittacula, Columba, Pteropus and Felis?

View answer and explanation

Correct option: D

Homeothermy

Option D (Homeothermy) is correct because Psittacula (parrot), Columba (pigeon), Pteropus (fruit bat), and Felis (cat) are all homeothermic (warm-blooded) animals.

89 Medium

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Understanding +4 | -1

Find out mis-matched pair

View answer and explanation

Correct option: C

Bombyx – Honey bee

The correct answer is C (Bombyx – Honey bee) because Bombyx is the silkworm, while the honey bee belongs to a different genus, Apis.

90 Medium

90 of 292

Remembering +4 | -1

Buccal diverticulum of hemichordates is called

View answer and explanation

Correct option: B

Stomochord

Option B (Stomochord) is correct because the buccal diverticulum in hemichordates is called the stomochord.

Revision notes and key takeaways

Review ANIMAL KINGDOM in your textbook or class notes, then use this set to check your understanding.

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