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NEET • BIOLOGY • ANIMAL KINGDOM
Animal kingdom practice · Mixed difficulty
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91
Easy
91 of 176
Understanding
+4 | -1
Which is a condition that in connected in the both external and internal structures and it is first found in which phylum of the animal kingdom
View answer and explanation
Correct option: D
Metamerism-Annelida
Option D (Metamerism-Annelida) is correct because metamerism, the segmentation of body structures, is a defining characteristic first prominently seen in the phylum Annelida.
92
Medium
92 of 176
Remembering
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Which of the following is not found in Hydra?
View answer and explanation
Correct option: C
Choanocyte
Option C (Choanocyte) is correct because choanocytes are characteristic cells of sponges (Porifera), not Hydra (Cnidaria).
93
Easy
93 of 176
Understanding
+4 | -1
Which animals belongs to the largest phylum and the second largest phylum of animalia respectively?
View answer and explanation
Correct option: B
Aedes and Loligo
Option B (Aedes and Loligo) is correct because Arthropoda is the largest phylum (Aedes is a mosquito, an arthropod) and Mollusca is the second largest (Loligo is a squid, a mollusk).
94
Medium
94 of 176
Understanding
+4 | -1
The scientific and common names of certain animals are given below. Mark the correct option Scientific name - Common name
A. Antedon – Brittle star B. Loligo – Cuttle fish
C. Dentalium – Tusk shell D. Euspongia – Bath sponge
A. Antedon – Brittle star B. Loligo – Cuttle fish
C. Dentalium – Tusk shell D. Euspongia – Bath sponge
View answer and explanation
Correct option: C
A and B are wrong but C and D are correct
Option C (A and B are wrong but C and D are correct) is correct because Dentalium is indeed a Tusk shell and Euspongia is a Bath sponge, while Antedon is a Feather star and Loligo is a Squid.
95
Medium
95 of 176
Remembering
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When the body is externally and internally divided into segments, it is called
View answer and explanation
Correct option: A
True segmentation
True segmentation is correct because it refers to the condition where the body is divided into segments both externally and internally.
96
Easy
96 of 176
Remembering
+4 | -1
The excretory cells, that are found in Platyhelminthes are
View answer and explanation
Correct option: D
All of these
Option D is correct because Protonephridia, flame cells, and solenocytes are all excretory cells found in Platyhelminthes.
97
Easy
97 of 176
Remembering
+4 | -1
Undifferentiated totipotent cells of sponges, are
View answer and explanation
Correct option: A
Archaeocytes
Option A (Archaeocytes) is correct because archaeocytes are undifferentiated totipotent cells in sponges that can transform into other specialized cell types.
98
Easy
98 of 176
Remembering
+4 | -1
Members of phylum-Porifera are
View answer and explanation
Correct option: D
Mostly marine animals but few are freshwater animals
Option D (Mostly marine animals but few are freshwater animals) is correct because the majority of Porifera species are found in marine environments, with a smaller number inhabiting freshwater habitats.
99
Hard
99 of 176
Remembering
+4 | -1
In Hydra, the beaded processes of sensory cells make synapsis with the process of
View answer and explanation
Correct option: A
Nerve cell
Option A (Nerve cell) is correct because sensory cells in Hydra form synapses with nerve cells to transmit signals.
100
Easy
100 of 176
Remembering
+4 | -1
True segmentation is also called
View answer and explanation
Correct option: C
Metamerism
Option C (Metamerism) is correct because true segmentation, where the body is divided into repeating segments, is also known as metamerism.
101
Easy
101 of 176
Understanding
+4 | -1
Which of the following statements is incorrect
View answer and explanation
Correct option: B
Water enter in sponge through osculum
Option B (Water enter in sponge through osculum) is correct because water enters a sponge through ostia (pores) and exits through the osculum.
102
Medium
102 of 176
Understanding
+4 | -1
In coelomates, the problem of diffusion of food from gut to tissues is solved by
View answer and explanation
Correct option: C
Developing a circulatory system.
Option C is correct because the circulatory system facilitates the transport of nutrients from the gut to the tissues in coelomates.
103
Easy
103 of 176
Understanding
+4 | -1
A sagittal section
View answer and explanation
Correct option: D
A vertical section passing through the middle line of the body
Option D (A vertical section passing through the middle line of the body) is correct because a sagittal section divides the body into left and right halves along the midline.
104
Hard
104 of 176
Understanding
+4 | -1
Select the group of animals that have a protostomous plan
View answer and explanation
Correct option: C
Apis indica, Loligo, Hirudinaria
Option C (Apis indica, Loligo, Hirudinaria) is correct because these animals (honeybee, squid, leech) are protostomes, where the blastopore develops into the mouth.
105
Easy
105 of 176
Remembering
+4 | -1
The characteristic larva of phylum-Coelenterata is
View answer and explanation
Correct option: A
Planula
Option A (Planula) is correct because the planula larva is the characteristic free-swimming larval stage of many cnidarians (Coelenterata).
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106
Easy
106 of 176
Understanding
+4 | -1
Water circulation in sponges does not help in
View answer and explanation
Correct option: A
Locomotion
Option A (Locomotion) is correct because sponges are sessile organisms and do not use water circulation for locomotion.
107
Easy
107 of 176
Understanding
+4 | -1
Coelenterata, Ctenophora, Mollusca, Arthropoda, Echinodermata, Annelida How many have true coelom?
View answer and explanation
Correct option: B
4
Option A (2) is correct because Annelida, Arthropoda, and Echinodermata have a true coelom.
108
Medium
108 of 176
Remembering
+4 | -1
Larva of Sycon is
View answer and explanation
Correct option: B
Amphiblastula
Option B (Amphiblastula) is correct because Amphiblastula is the characteristic free-swimming larval stage of Sycon, a type of sponge.
109
Hard
109 of 176
Remembering
+4 | -1
Non-chordates show
View answer and explanation
Correct option: D
Absence of hepatic portal system
Option D (Absence of hepatic portal system) is correct because non-chordates lack a hepatic portal system.
110
Medium
110 of 176
Remembering
+4 | -1
Which of the following is colourless Hydra?
View answer and explanation
Correct option: D
Hydra vulgaris
Option D (Hydra vulgaris) is correct because Hydra vulgaris is typically colorless or translucent, while other Hydra species have distinct colors due to symbiotic algae or pigments.
111
Hard
111 of 176
Understanding
+4 | -1
If Hydra is cut transversely in three equal parts, then
View answer and explanation
Correct option: B
Regeneration will occur in all the three parts
Regeneration will occur in all the three parts. Hydra possesses remarkable regenerative capabilities, allowing each section to develop into a complete organism.
112
Medium
112 of 176
Analyzing
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Find out the odd one based on habitat
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Correct option: B
Planaria
Option B (Planaria) is the odd one out because it is a free-living organism, while the others are parasitic.
113
Medium
113 of 176
Remembering
+4 | -1
How many of these animals are monoecious or Hermaphrodite
(i)Ascaris (ii) Wuchereria (iii)Fasciola (iv) Ancyclostoma
(v) Hirudanaria (vi) Taenia (vii) Nereis (viii) Pheretima
(i)Ascaris (ii) Wuchereria (iii)Fasciola (iv) Ancyclostoma
(v) Hirudanaria (vi) Taenia (vii) Nereis (viii) Pheretima
View answer and explanation
Correct option: C
4
Option C (4) is correct because Fasciola, Hirudanaria, Taenia, and Pheretima are hermaphrodites (monoecious), while Ascaris, Wuchereria, Ancyclostoma, and Nereis are dioecious.
114
Hard
114 of 176
Remembering
+4 | -1
Which of the following is not a Porifera
View answer and explanation
Correct option: B
Spirulina
Option B (Spirulina) is correct because Spirulina is a cyanobacterium (blue-green algae), not a Porifera (sponge).
115
Medium
115 of 176
Remembering
+4 | -1
Three types of body cavity are
View answer and explanation
Correct option: A
True coelom, pseudocoelom and haemocoel
Option A (True coelom, pseudocoelom and haemocoel) is correct because these represent the different types of body cavities found in animals based on their structure and origin.
116
Medium
116 of 176
Analyzing
+4 | -1
Assertion : Blood flows at a very slow velocity in the lacunae and sinuses of prawn.
Reason : This happens because of the absence of heart in the prawn.
Reason : This happens because of the absence of heart in the prawn.
View answer and explanation
Correct option: C
If the assertion is true but the reason is false
Option C (If the assertion is true but the reason is false) is correct because while blood flow is slow in prawn lacunae, it's due to an open circulatory system, not the absence of a heart.
117
Easy
117 of 176
Analyzing
+4 | -1
Select the option representing a wrong match in the given table.
View answer and explanation
Correct option: B
Animal-Adamsia, Characteristic-Polyp and medusa stage in life cycle , Taxon-Coelenterata
Option B (Animal-Adamsia, Characteristic-Polyp and medusa stage in life cycle , Taxon-Coelenterata) is correct because Adamsia (sea anemone) only exists in the polyp form, not both polyp and medusa.
118
Medium
118 of 176
Understanding
+4 | -1
Which of the following group of organisms is bilaterally symmetrical triploblastic of acoelomate with organ level of organization?
View answer and explanation
Correct option: C
Taenia, Fasciola & Planaria
Option C (Taenia, Fasciola & Planaria) is correct because these are all flatworms (Platyhelminthes) which are bilaterally symmetrical, triploblastic, acoelomate, and have organ level of organization.
119
Medium
119 of 176
Understanding
+4 | -1
Which of the following animals can successfully reproduce without utilizing the process of mitosis?
View answer and explanation
Correct option: D
Sycon
Option B (Hydra) is correct because Hydra reproduces asexually through budding, which does not directly involve mitosis in the same way as cell division during growth.
120
Hard
120 of 176
Remembering
+4 | -1
Food of Hydra is
View answer and explanation
Correct option: D
Some crustaceans
Option D (Some crustaceans) is correct because Hydra primarily feeds on small aquatic invertebrates, including crustaceans.
Revision notes and key takeaways
Review ANIMAL KINGDOM in your textbook or class notes, then use this set to check your understanding.
Showing 91-120 of 176 questions