While trying to find out the characteristic of a newly found animal, a researcher did the histology of adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alimentary canal. What could be the possible coelome of that animal ?
Diversity in Living World
Every question from past board papers on Diversity in Living World, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
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All living members of the class Cyclostomata are:
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : All vertebrates are chordates but all chordates are not vertebrate.
Reason (R) : The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below :
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Role of the water vascular system in Echinoderms is :
A. Respiration and Locomotion
B. Excretion and Locomotion
C. Capture and transport of food
D. Digestion and Respiration
E. Digestion and Excretion
Choose the correct answer from the options given below :
NEET UG 2024 question paper (official, booklet S6)
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Match List I with List II :
List I:
A. Pleurobrachia
B. Radula
C. Stomochord
D. Air bladder
List II:
I. Mollusca
II. Ctenophora
III. Osteichthyes
IV. Hemichordata
Choose the correct answer from the options given below :
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Match List I with List II :
List I:
A. Pterophyllum
B. Myxine
C. Pristis
D. Exocoetus
List II:
I. Hag fish
II. Saw fish
III. Angel fish
IV. Flying fish
Choose the correct answer from the options given below :
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Consider the following statements :
A. Annelids are true coelomates
B. Poriferans are pseudocoelomates
C. Aschelminthes are acoelomates
D. Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below :
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The following are the statements about non-chordates :
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below :
NEET UG 2023 question paper (official, booklet G6)
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Match List I with List II.
List I: A. Taenia; B. Paramoecium; C. Periplaneta; D. Pheretima
List II: I. Nephridia; II. Contractile vacuole; III. Flame cells; IV. Urecose gland
Choose the correct answer from the options give below:
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Radial symmetry is NOT found in adults of phylum ________.
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Select the correct statements with reference to chordates.
A. Presence of a mid-dorsal, solid and double nerve cord.
B. Presence of closed circulatory system.
C. Presence of paired pharyngeal gillslits.
D. Presence of dorsal heart
E. Triploblastic pseudocoelomate animals.
Choose the correct answer from the options given below:
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The unique mammalian characteristics are:
NEET UG 2022 question paper (official, booklet R6)
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
All vertebrates are chordates but all chordates are not vertebrates.
Reason (R) :
Notochord is replaced by vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below :
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In which of the following animals, digestive tract has additional chambers like crop and gizzard ?
NEET UG 2021 question paper (official, booklet M4)
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Which one of the following organisms bears hollow and pneumatic long bones ?
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Match List - I with List - II.
List - I / List - II
(a) Metamerism (i) Coelenterata
(b) Canal system (ii) Ctenophora
(c) Comb plates (iii) Annelida
(d) Cnidoblasts (iv) Porifera
Choose the correct answer from the options given below.
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Match the following :
List - I / List - II
(a) Physalia (i) Pearl oyster
(b) Limulus (ii) Portuguese Man of War
(c) Ancylostoma (iii) Living fossil
(d) Pinctada (iv) Hookworm
Choose the correct answer from the options given below.
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Read the following statements.
(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization.
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
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Which one of the following belongs to the family Muscidae ?
NEET UG 2020 question paper (official, booklet E1)
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Match the following columns and select the correct option.
Column - I: (a) Gregarious, polyphagous pest (b) Adult with radial symmetry and larva with bilateral symmetry (c) Book lungs (d) Bioluminescence
Column - II: (i) Asterias (ii) Scorpion (iii) Ctenoplana (iv) Locusta
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Which of the following statements are true for the phylum-Chordata ?
(a) In Urochordata notochord extends from head to tail and it is present throughout their life.
(b) In Vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata.
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Match the following columns and select the correct option.
Column - I: (a) 6 - 15 pairs of gill slits (b) Heterocercal caudal fin (c) Air Bladder (d) Poison sting
Column - II: (i) Trygon (ii) Cyclostomes (iii) Chondrichthyes (iv) Osteichthyes
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Bilaterally symmetrical and acoelomate animals are exemplified by :
NEET UG 2019 question paper (official, booklet P1)
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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.
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Match the following organisms with their respective characteristics :
(a) \(\textit{Pila}\) (i) Flame cells
(b) \(\textit{Bombyx}\) (ii) Comb plates
(c) \(\textit{Pleurobrachia}\) (iii) Radula
(d) \(\textit{Taenia}\) (iv) Malpighian tubules
Select the correct option from the following :
NEET UG 2018 question paper (official, booklet EE)
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Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.
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Which one of these animals is not a homeotherm ?
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Which of the following animals does not undergo metamorphosis ?
NEET UG 2017 question paper (official, booklet B)
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An important characteristic that Hemichordates share with Chordates is :
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Which of the following represents order of 'Horse' ?
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Which among these is the correct combination of aquatic mammals ?
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In case of poriferans, the spongocoel is lined with flagellated cells called :
NEET UG 2016 Phase 1 question paper (official, booklet A)
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Which of the following features is not present in the Phylum - Arthropoda ?
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Which of the following features is not present in *Periplaneta americana* ?
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Which of the following characteristic features always holds true for the corresponding group of animals ?
(1) Cartilaginous endoskeleton | Chondrichthyes
(2) Viviparous | Mammalia
(3) Possess a mouth with an upper and a lower jaw | Chordata
(4) 3 - chambered heart with one incompletely divided ventricle | Reptilia
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Which one of the following characteristics is not shared by birds and mammals ?
NEET UG 2016 Phase 2 question paper (official, booklet ZZ)
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Match Column—I with Column—II for housefly classification and select the correct option using the codes given below :
Column—I: a. Family; b. Order; c. Class; d. Phylum
Column—II: (i) Diptera; (ii) Arthropoda; (iii) Muscidae; (iv) Insecta
Codes :
a b c d
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Choose the correct statement.
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In male cockroaches, sperms are stored in which part of the reproductive system?