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NEET • BIOLOGY • ANIMAL KINGDOM
Animal kingdom practice · Medium
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181
Medium
181 of 292
Application
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Read the following characters.
A. Ventrally located mouth
B. Mouth is terminal
C. Operculum is present
D. Airbladder is absent
E. In male pelvic fins bear claspers.
Choose the correct options for Carcharodon.
A. Ventrally located mouth
B. Mouth is terminal
C. Operculum is present
D. Airbladder is absent
E. In male pelvic fins bear claspers.
Choose the correct options for Carcharodon.
View answer and explanation
Correct option: B
A, D and E
Option B (A, D and E) is correct because Carcharodon (great white shark) has a ventrally located mouth, lacks an operculum, and males have claspers on pelvic fins.
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Remembering
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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.
183
Medium
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Understanding
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(S-I): In Molluscans the anterior head region has sensory eyes.
(S-II): In Moulluscans mouth contains a file-like rasping organ for feeding called Radula.
(S-II): In Moulluscans mouth contains a file-like rasping organ for feeding called Radula.
View answer and explanation
Correct option: C
S-I is false and S-II is true
Option C is correct because while molluscs do have sensory structures, they are not always located in a distinct anterior head region. The presence of a radula is a defining characteristic of most molluscs.
184
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Remembering
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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.
185
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Understanding
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Which of the following characters is absent in all chordates?
View answer and explanation
Correct option: A
Diaphragm
Option A (Diaphragm) is correct because a diaphragm is not present in all chordates; it is primarily a mammalian characteristic.
186
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Understanding
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(S-I): The body cavity of nematodes is a pseudocoel.
(S-II): The body of the aschelminthes is a circular in cross-secti, hence the name roundworms.
(S-II): The body of the aschelminthes is a circular in cross-secti, hence the name roundworms.
View answer and explanation
Correct option: A
Both statements are true
Option A (Both statements are true) is correct because nematodes possess a pseudocoelom and aschelminthes are indeed round in cross-section, hence the name roundworms.
187
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Analyzing
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Find out the odd one based on habitat
View answer and explanation
Correct option: B
Planaria
Option B (Planaria) is the odd one out because it is a free-living organism, while the others are parasitic.
188
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Remembering
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Pseudocoelom is not found in
View answer and explanation
Correct option: C
Fasciola
Option C (Fasciola) is correct because Fasciola is a platyhelminth (flatworm) and possesses an acoelomate body plan, lacking a pseudocoelom.
189
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Remembering
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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.
190
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Remembering
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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.
191
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Analyzing
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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.
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Understanding
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“Triploblastic, unsegmented, acoelomate exhibiting bilateral symmetry and reproducing both asexually and sexuality, with some parasitic forms”.
The above description is the characteristic of phylum
The above description is the characteristic of phylum
View answer and explanation
Correct option: D
Platyhelminthes
Option D (Platyhelminthes) is correct because the description matches the characteristics of flatworms: triploblastic, unsegmented, acoelomate, bilaterally symmetrical, and capable of both sexual and asexual reproduction, with many being parasitic.
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Remembering
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The substance or structure found in the eyes of birds is
View answer and explanation
Correct option: D
Pectin
Option D (Pectin) is correct because pectin is a substance found in the eyes of birds, specifically in the pecten.
194
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Remembering
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Hydra can paralyse pery by
View answer and explanation
Correct option: A
Nemato cysts
Option A (Nemato cysts) is correct because nematocysts, specialized stinging cells in cnidocytes, are used by Hydra to paralyze prey.
195
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Understanding
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What is common among silver fish, scorpion, crab and honey bee?
View answer and explanation
Correct option: C
Jointed appendages
Option C (Jointed appendages) is correct because all the listed organisms (silverfish, scorpion, crab, and honey bee) belong to the phylum Arthropoda, which is characterized by jointed appendages.
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196
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Remembering
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In Rattus rattus, internally cerebral hemisphere are connected by
View answer and explanation
Correct option: C
Corpus callosum
Option C (Corpus callosum) is correct because the corpus callosum is a large neural pathway that connects the two cerebral hemispheres in mammals, including Rattus rattus.
197
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Remembering
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The pseudocoelomate among these is
View answer and explanation
Correct option: C
Aschelminthes
Option C (Aschelminthes) is correct because Aschelminthes (Nemathelminthes) are pseudocoelomates, possessing a body cavity that is not completely lined by mesoderm.
198
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Understanding
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Which of the following is wrongly matched?
View answer and explanation
Correct option: C
Haemocyanin – leeches
The correct answer is C (Haemocyanin – leeches) because leeches do not have haemocyanin; they have haemoglobin dissolved in their blood plasma.
199
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Remembering
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Scales are found in
View answer and explanation
Correct option: A
Pisces
Option A (Pisces) is correct because scales are a characteristic feature of fishes (Pisces).
200
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Understanding
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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.
201
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Understanding
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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.
202
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Understanding
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Functions of feather like gills
A. Respiration B. Capturing of prey C. Locomotion
D. Excretion E. Anchorage
A. Respiration B. Capturing of prey C. Locomotion
D. Excretion E. Anchorage
View answer and explanation
Correct option: C
A and D
Option C is correct because feather-like gills are primarily involved in respiration (gas exchange) and excretion (removal of metabolic waste).
203
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Remembering
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Which class Animals have the following features
1) The eyes have eyelids
2) A tympanum represents the ear.
1) The eyes have eyelids
2) A tympanum represents the ear.
View answer and explanation
Correct option: A
Amphibia
Option A (Amphibia) is correct because amphibians are the class of animals that typically possess eyelids and a tympanum (eardrum).
204
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Understanding
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Which one of these organisms shows all the following properties?
I. Exclusively marine habitat
II. Migration to fresh water for spawning
III. After spawning, within a few days, it dies
I. Exclusively marine habitat
II. Migration to fresh water for spawning
III. After spawning, within a few days, it dies
View answer and explanation
Correct option: B
Petromyzon
Option B (Petromyzon) is correct because Petromyzon (lamprey) is exclusively marine, migrates to freshwater for spawning, and dies shortly after spawning (anadromous migration).
205
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Understanding
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Which of the following statements are applicable to birds ?
a) Endoskeleton is made up of either cartilage or bone
b) Crop and gizzard are the additional chambers in digestive tract
c) Poikilothermic animals
d) Air sacs connected to lungs supplement respiration
e) Fertilisation may be external (or) internal
a) Endoskeleton is made up of either cartilage or bone
b) Crop and gizzard are the additional chambers in digestive tract
c) Poikilothermic animals
d) Air sacs connected to lungs supplement respiration
e) Fertilisation may be external (or) internal
View answer and explanation
Correct option: B
b and d only
Option B (b and d only) is correct because birds have crop and gizzard as additional chambers in their digestive tract, and air sacs connected to lungs supplement respiration.
206
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Remembering
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Which one has no intermediate host?
View answer and explanation
Correct option: B
Ascaris
Option B is correct because Ascaris (roundworm) has a direct life cycle and does not require an intermediate host.
207
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Understanding
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Choose the group of parasitic animal
View answer and explanation
Correct option: C
Fasciola – Taenia – Ancylostoma
Option C (Fasciola – Taenia – Ancylostoma) is correct because all three organisms are parasitic: Fasciola (liver fluke), Taenia (tapeworm), and Ancylostoma (hookworm).
208
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Remembering
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Salamander can regenerate
View answer and explanation
Correct option: C
External gills
Option D (All of these) is correct because salamanders can regenerate tails, limbs, and external gills.
209
Medium
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Analyzing
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Read the following four statements (I-IV)
I. All mammals exclusively respire by using lungs except Balaenoptera.
II. In Aves, the skin is dry without any glands
except the sudorific gland at the base of the tail.
III. Chameleon is a camouflage tree lizard with a prehensile tail.
IV. Amphibia is the only tetrapod vertebrate which has external fertilization with indirect development.
How many statement is/are correct from the above?
I. All mammals exclusively respire by using lungs except Balaenoptera.
II. In Aves, the skin is dry without any glands
except the sudorific gland at the base of the tail.
III. Chameleon is a camouflage tree lizard with a prehensile tail.
IV. Amphibia is the only tetrapod vertebrate which has external fertilization with indirect development.
How many statement is/are correct from the above?
View answer and explanation
Correct option: D
Two
Option D (Two) is correct because statements III and IV are correct. Statement I is incorrect because Balaenoptera (whales) are mammals and respire using lungs. Statement II is incorrect because Aves have a preen gland (uropygial gland) at the base of their tail, not a sudorific gland.
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Understanding
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What is left when both sponge dries up?
View answer and explanation
Correct option: B
Spongine fibres
Option B (Spongine fibres) is correct because spongine fibres form the skeletal structure of certain sponges and remain after the sponge dries up.
Revision notes and key takeaways
Review ANIMAL KINGDOM in your textbook or class notes, then use this set to check your understanding.
Showing 181-210 of 292 questions