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NEET • BIOLOGY • ANIMAL KINGDOM
Animal kingdom practice · Medium
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Showing 271-292 of 292 questions
271
Medium
271 of 292
Analyzing
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Select the mismatch among the following.
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Correct option: C
Proboscis gland - Petromyzon
Option C (Proboscis gland - Petromyzon) is the mismatch because Petromyzon possesses pronephric kidney instead of proboscis gland.
272
Medium
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Remembering
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S-I: Urochordates are commonly called as tunicates.
S-II: Their body is covered by tunic.
S-II: Their body is covered by tunic.
View answer and explanation
Correct option: A
Both (I) and (II) are true
Option A (Both (I) and (II) are true) is correct because Urochordates are indeed commonly called tunicates, and their body is covered by a tunic.
273
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273 of 292
Remembering
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Radula is found in
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Correct option: A
Pila sp
Option A (Pila sp) is correct because Radula, a rasping organ for feeding, is found in Pila sp.
274
Medium
274 of 292
Analyzing
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Which of the these statements are wrong?
I. Parapodia are lateral appendages in arthropods used for swimming.
II. Radula in molluscs are structures involved in excretion.
III.Aschelminthes are dioecious.
IV. Echinoderm adults show radial symmetry
V.Ctenophorans are diploblastic
I. Parapodia are lateral appendages in arthropods used for swimming.
II. Radula in molluscs are structures involved in excretion.
III.Aschelminthes are dioecious.
IV. Echinoderm adults show radial symmetry
V.Ctenophorans are diploblastic
View answer and explanation
Correct option: A
I and II
Option A (I and II) is correct because parapodia are lateral appendages in annelids, not arthropods, and radula in molluscs are structures involved in feeding, not excretion.
275
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Remembering
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The mantle in the phylum-Mollusca is a
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Correct option: C
Soft spongy layer of skin
Option C (Soft spongy layer of skin) is correct because the mantle in molluscs is a soft, spongy layer of skin that secretes the shell.
276
Medium
276 of 292
Understanding
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(S-I) : Ctenophores reproduce by sexual method of reproduction.
(S-II): In Ctenophores fertilisation is internal with indirect development.
(S-II): In Ctenophores fertilisation is internal with indirect development.
View answer and explanation
Correct option: B
S-I is true and S-II is false
Option B is correct because Ctenophores reproduce sexually, but fertilization is external with indirect development.
277
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277 of 292
Understanding
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It is not a characteristic feature of sea horse and horse
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Correct option: D
Double ventral nerve cord
Option D (Double ventral nerve cord) is correct because sea horses and horses, being chordates, have a single dorsal nerve cord, not a double ventral one.
278
Medium
278 of 292
Remembering
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Which of the following is a flightless bird?
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Correct option: D
All of these
Option D (All of these) is correct because ostriches, emus, and kiwis are all examples of flightless birds.
279
Medium
279 of 292
Remembering
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Notochord is persistent throughout life in
View answer and explanation
Correct option: A
Lancelets
Option A is correct because lancelets (Branchiostoma), belonging to Cephalochordata, retain their notochord throughout their entire life.
280
Medium
280 of 292
Understanding
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Which of the following class is being correctly described by given statements (i – iv)?
(i) All living members of this class are ectoparasites on some fishes
(ii) They have a sucking and circular mouth without jaws.
(iii) Circulation is of closed type
(iv)They are marine but migrate for spawning to fresh water. After spawing, with in a few days they die.
(i) All living members of this class are ectoparasites on some fishes
(ii) They have a sucking and circular mouth without jaws.
(iii) Circulation is of closed type
(iv)They are marine but migrate for spawning to fresh water. After spawing, with in a few days they die.
View answer and explanation
Correct option: A
Cyclostomata
Option A is correct because the described features are characteristic of the class Cyclostomata (jawless fishes).
281
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Understanding
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The response to external stimulus is quicker and more precise in which of the following symmetry?
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Correct option: B
Bilateral
Option B (Bilateral) is correct because bilateral symmetry allows for cephalization (concentration of sensory organs at the head), leading to quicker and more precise responses to external stimuli.
282
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Understanding
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Assertion: Cyclostomes have a sucking and circular mouth without jaws.
Reason: Body of cyclostomes is devoid of scales and paired fins.
Reason: Body of cyclostomes is devoid of scales and paired fins.
View answer and explanation
Correct option: B
Both assertion and reason are correct but reason is not the correct explanation to assertion
Option B is correct because both the assertion and the reason are true statements about cyclostomes, but the reason does not explain why cyclostomes have a sucking and circular mouth without jaws.
283
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283 of 292
Understanding
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Bilaterally symmetrical, triploblastic and metamerically segmented and animal with parapodia is ____
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Correct option: C
Nereis
Option C (Nereis) is correct because Nereis (a polychaete annelid) exhibits bilateral symmetry, is triploblastic, metamerically segmented, and possesses parapodia (fleshy appendages) for locomotion.
284
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284 of 292
Analyzing
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Find odd one.
View answer and explanation
Correct option: B
Sea hare – Marine Rabbit
Option B is the odd one because Sea hare is a mollusc, while the others are echinoderms.
285
Medium
285 of 292
Remembering
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Which one of the following animal has both exoskeletal and endoskeletal structures?
View answer and explanation
Correct option: B
Tortoise
Option B (Tortoise) is correct because tortoises have both an exoskeleton (shell) and an endoskeleton (bones).
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286
Medium
286 of 292
Analyzing
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Choose odd one.
View answer and explanation
Correct option: A
Direct development – Porifera
Option A (Direct development – Porifera) is the odd one out because Porifera typically exhibit indirect development with a larval stage, unlike the other options which correctly pair a feature with its phylum.
287
Medium
287 of 292
Understanding
+4 | -1
Monoecious organism, which possess true coelom is
View answer and explanation
Correct option: B
Earth worm
Option B is correct because earthworms are monoecious (hermaphroditic) and possess a true coelom (eucoelom).
288
Medium
288 of 292
Remembering
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In which of the following organisms testes descend into scrotum in breeding season but in non-breeding season goes up?
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Correct option: D
Bat
Option D (Bat) is correct because in some bat species, the testes ascend into the abdomen during the non-breeding season and descend into the scrotum during the breeding season.
289
Medium
289 of 292
Understanding
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Which animals do not possess larval stage in its Life cycle.
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Correct option: D
Pheretima
Option D (Pheretima) is correct because Pheretima (earthworm) exhibits direct development, meaning it hatches as a juvenile form that resembles the adult, without a larval stage.
290
Medium
290 of 292
Remembering
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Cilia of gills of bivalve molluscs help in
View answer and explanation
Correct option: A
Feeding
Option A (Feeding) is correct because the cilia on the gills of bivalve molluscs create water currents that bring food particles to the mouth.
291
Medium
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Understanding
+4 | -1
Which one of the following is the true description about an animal concerned?
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Correct option: D
Cockroach – 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)
Option D (Cockroach – 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)) is correct because cockroaches indeed have 10 pairs of spiracles distributed as described.
292
Medium
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Understanding
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Complete the analogy. Cockroach : Tracheal tubes :: Earthworm : _____
View answer and explanation
Correct option: B
Moist body surface
Option B (Moist body surface) is correct because earthworms respire through their moist skin, while cockroaches use tracheal tubes.
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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