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NEET • BIOLOGY • ANIMAL KINGDOM
Animal kingdom practice · Medium
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Showing 31-60 of 292 questions
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Understanding
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The animal that never performs locomotion is
View answer and explanation
Correct option: C
Both (a) and (b)
Option C (Both (a) and (b)) is correct because adult Leucosolenia (a sponge) is sessile and Ascaris (an endoparasitic roundworm) lives within a host and does not perform locomotion.
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Remembering
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Limbless amphibians are called
View answer and explanation
Correct option: C
Caecilian worms
Option C (Caecilian worms) is correct because caecilians are a group of limbless amphibians that resemble worms or snakes.
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Understanding
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Circulatory system is best represented by
View answer and explanation
Correct option: D
Both (1) and (2)
Option D (Both (1) and (2)) is correct because both Earthworm and Leech (belonging to Annelida) possess a closed circulatory system.
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Understanding
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Statement – I: Tape worm absorb nutrients from the host directly through their body surface.
Statement – II: Flame cells are specialized cells in flatworms for osmoregulation and absorption of nutrients.
Statement – II: Flame cells are specialized cells in flatworms for osmoregulation and absorption of nutrients.
View answer and explanation
Correct option: B
Statement I is correct, statement II is incorrect
Statement I is correct, statement II is incorrect. Tapeworms absorb nutrients through their body surface, but flame cells are for osmoregulation, not nutrient absorption.
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Analyzing
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Read the following statement about phylum Annelida. Identify the true and false statements and select the
correct option after referring to the given table.
A. Annelids are diploblastic, metamerically segmented, coelomate animals.
B. Their neural system consists of paired ganglia connected by lateral nerves to single ventral nerve cord.
C. They possess longitudinal and circular muscle fibres which help in locomotion.
D. Nephridia help them in osmoregulation and excretion.
correct option after referring to the given table.
A. Annelids are diploblastic, metamerically segmented, coelomate animals.
B. Their neural system consists of paired ganglia connected by lateral nerves to single ventral nerve cord.
C. They possess longitudinal and circular muscle fibres which help in locomotion.
D. Nephridia help them in osmoregulation and excretion.
View answer and explanation
Correct option: B
A: False, B: False, C: True, D: True
Option B (A: False, B: False, C: True, D: True) is correct because annelids are triploblastic, and their neural system consists of paired ganglia connected by lateral nerves to a double ventral nerve cord.
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Remembering
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Asymmetry in Gastropoda is due to
View answer and explanation
Correct option: C
Twisting
Option A (Torsion) is correct because the asymmetry in Gastropoda (snails and slugs) is primarily due to a process called torsion, which involves the twisting of the visceral mass.
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Analyzing
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Pick the odd one out.
View answer and explanation
Correct option: B
Pavo, Psittacula, Ornithorynchus
Option B (Pavo, Psittacula, Ornithorynchus) is correct because Ornithorhynchus (platypus) is a mammal, while Pavo (peacock) and Psittacula (parrot) are birds.
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Remembering
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Animals having a built in thermostat to maintain constant body temperature are known as
View answer and explanation
Correct option: D
Homeothermic
Option D (Homeothermic) is correct because homeothermic animals maintain a constant body temperature using internal regulatory mechanisms.
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Understanding
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Given below are three statements regarding Aschelminthes.
(i)They are bilaterally symmetrical and triploblastic.
(ii) They are dioecious.
(iii) All are plants or animals parasites.
Select the option that has both the correct statements.
(i)They are bilaterally symmetrical and triploblastic.
(ii) They are dioecious.
(iii) All are plants or animals parasites.
Select the option that has both the correct statements.
View answer and explanation
Correct option: A
(i) and (ii)
Option A ((i) and (ii)) is correct because Aschelminthes are bilaterally symmetrical and triploblastic, and they are dioecious (sexes are separate).
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Understanding
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Read the given statements and select the correct option.
Statement 1: Cephalochordata bears notochord all along the body throughout life.
Statement 2: Urochordate bears vertebral column only in tail region throughout the life.
Statement 1: Cephalochordata bears notochord all along the body throughout life.
Statement 2: Urochordate bears vertebral column only in tail region throughout the life.
View answer and explanation
Correct option: B
Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.
Option B is correct because both statements are correct, but statement 2 does not explain statement 1.
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Remembering
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Changes that allow the conversion of larva into adult, are called
View answer and explanation
Correct option: C
Metamorphosis
Option C (Metamorphosis) is correct because metamorphosis refers to the biological process where a larva transforms into an adult through distinct stages.
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Remembering
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Book lungs and look gills are found in which of the following animals, respectively?
View answer and explanation
Correct option: D
Scorpion and king crabs
Option D is correct because scorpions have book lungs, and king crabs have book gills.
43
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Analyzing
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Select the option with incorrectly matched featues w.r.t. group of animals mentioned?
View answer and explanation
Correct option: A
Cyclostomes - Mouth is circular, devoid of jaws, open circulation is seen, body is devoid of scales and paired fins
Option A is correct because cyclostomes have a closed circulatory system, not an open one.
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Remembering
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Which of the following is an echinoderm?
View answer and explanation
Correct option: D
Sea urchin
Option D is correct because sea urchins are echinoderms, characterized by their radial symmetry and water vascular system.
45
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Analyzing
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Select the option where members do not belong to same phylum/class as mentioned.
View answer and explanation
Correct option: A
Dog fish, jelly fish, saw fish, sting ray - Chondrichthyes
Option A (Dog fish, jelly fish, saw fish, sting ray - Chondrichthyes) is correct because jellyfish belong to phylum Cnidaria, while dogfish, sawfish, and stingray belong to class Chondrichthyes.
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Remembering
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Which of the following does not belong to phylum-Platyhelminthes?
View answer and explanation
Correct option: C
Wuchereria
Option C (Wuchereria) is correct because Wuchereria belongs to the phylum Nemathelminthes, while Fasciola, Taenia, and Planaria belong to Platyhelminthes.
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Remembering
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Identify the correct combination
View answer and explanation
Correct option: C
Carcharodon – Great white shark
Option C (Carcharodon – Great white shark) is correct because Carcharodon is the genus name for the Great White Shark.
48
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Understanding
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What will you look for to identity the sex of the following?
View answer and explanation
Correct option: C
Male shark – claspers borne on pelvic fins
Option C (Male shark – claspers borne on pelvic fins) is correct because male sharks have claspers on their pelvic fins, which are used for copulation.
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Understanding
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A triploblastic animal with bilateral symmetry in larval stage but asymmetry in adult is
View answer and explanation
Correct option: C
Gastropoda
Option C is correct because Gastropoda (snails, slugs) exhibit bilateral symmetry in their larval stage but undergo torsion during development, resulting in asymmetry in the adult form.
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Remembering
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Animals are classified on the basis of their symmetry into….. Groups
View answer and explanation
Correct option: A
2
Option A (2) is correct because animals are classified based on symmetry into two main groups: radial and bilateral (with asymmetry being a lack of symmetry).
51
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Understanding
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Which of the following groups of animals have the following feature?
I. Diploblastic
II. Acoelomate
III. Radial symmetry
I. Diploblastic
II. Acoelomate
III. Radial symmetry
View answer and explanation
Correct option: C
Adamsia, Berore, Meandrina
Option C (Adamsia, Berore, Meandrina) is correct because these animals (sea anemone, comb jelly, brain coral) are diploblastic, acoelomate, and have radial symmetry.
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Analyzing
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Assertion (A): Sea walnuts are exclusively marine radially symmetrical, diploblastic organisms with tissue level of organisation.
Reason (R): It having efficient osmoregulatory organ which made them capable to survive in marine habitat.
Reason (R): It having efficient osmoregulatory organ which made them capable to survive in marine habitat.
View answer and explanation
Correct option: C
(A) is true but (R) is false
Option C ((A) is true but (R) is false) is correct because sea walnuts (Ctenophores) are marine, radially symmetrical, diploblastic organisms with tissue-level organization, but they do not have efficient osmoregulatory organs.
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Analyzing
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Assertion: There are no mammary gland in birds.
Reason: Pigeons secrete ‘pigeon’s milk’.
Reason: Pigeons secrete ‘pigeon’s milk’.
View answer and explanation
Correct option: B
If both Assertion and Reason are true but Reason
is not the correct explanation of Assertion
is not the correct explanation of Assertion
Option B is correct because both the assertion and reason are true, but the reason doesn't explain why birds lack mammary glands.
54
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Remembering
+4 | -1
Which one of the following exhibits concentric ‘tube within tube’ plan?
View answer and explanation
Correct option: B
Annelida
Option B (Annelida) is correct because Annelids exhibit a true coelom and metameric segmentation, resulting in a 'tube within a tube' body plan.
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Understanding
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Assertion: the most unique mammalian characteristic is the presence of milk producing glands.
Reason: They have two pairs of limbs. Adapted for walking, running, climbing, burrowing, swimming and flying
Reason: They have two pairs of limbs. Adapted for walking, running, climbing, burrowing, swimming and flying
View answer and explanation
Correct option: B
A and R are correct, but R is not correct explanation for A
Option B (A and R are correct, but R is not correct explanation for A) is correct because both the assertion and reason are true statements, but the reason doesn't explain why mammals have milk-producing glands.
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Remembering
+4 | -1
In Leucosolenia, gametes develop from
View answer and explanation
Correct option: B
Archaeocytes
Option B (Archaeocytes) is correct because archaeocytes are totipotent cells in sponges that can differentiate into gametes.
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Understanding
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Statement 1: Arthropoda are the most successful of all the known animal groups.
Statement 2: Arthropoda exhibits the greatest adaptive radiation and have adapted to diverse habitats.
Statement 2: Arthropoda exhibits the greatest adaptive radiation and have adapted to diverse habitats.
View answer and explanation
Correct option: A
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
The correct answer is A (Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1) because arthropods are the most successful due to their adaptive radiation.
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Remembering
+4 | -1
In echolocation, the animal that produces high frequency sounds is
View answer and explanation
Correct option: D
Bat
Option D (Bat) is correct because bats are well-known for using echolocation, which involves emitting high-frequency sounds and interpreting the returning echoes.
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Understanding
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Consider following features
a) Organ system level of organisation
b) Bilateral symmetry
c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics
a) Organ system level of organisation
b) Bilateral symmetry
c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics
View answer and explanation
Correct option: A
Annelida, Arthropoda and Chordata
Option A (Annelida, Arthropoda and Chordata) is correct because these three phyla exhibit organ system level organization, bilateral symmetry, true coelom, and segmentation.
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Which one is not correctly matched?
View answer and explanation
Correct option: A
Annelida - Enterocoelomate.
Option A is not correctly matched because Annelida are schizocoelomate, not enterocoelomate. Enterocoelomates are typically deuterostomes like echinoderms and chordates.
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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