3-4 Questions
Avg NEET Questions/Year
12-16 Marks
Weightage Impact
20 MCQs
Question Bank Size
Key Focus Areas: Coelom, Symmetry, Notochord, Phylum Arthropoda, Chordata classes.
Complete Animal Kingdom Question Bank & Solutions (20 Questions)
Q1 of 20
NEET NCERT Line-by-Line
Choanocytes (collar cells) are characteristic of:
(A)
Coelenterata
(B)
Porifera
(C)
Annelida
(D)
Echinodermata
Show Answer & NCERT Explanation
Correct Answer: (B) Porifera
Porifera (sponges) have choanocytes lining the canal system.
Q2 of 20
NEET NCERT Line-by-Line
Which phylum is acoelomate?
(A)
Annelida
(B)
Arthropoda
(C)
Platyhelminthes
(D)
Mollusca
Show Answer & NCERT Explanation
Correct Answer: (C) Platyhelminthes
Platyhelminthes have no body cavity (acoelomate).
Q3 of 20
NEET NCERT Line-by-Line
Cnidoblasts are found in:
(A)
Porifera
(B)
Coelenterata
(C)
Ctenophora
(D)
Platyhelminthes
Show Answer & NCERT Explanation
Correct Answer: (B) Coelenterata
Coelenterata (Cnidaria) use cnidoblasts for defence and capturing prey.
Q4 of 20
NEET NCERT Line-by-Line
The largest animal phylum is:
(A)
Mollusca
(B)
Chordata
(C)
Arthropoda
(D)
Annelida
Show Answer & NCERT Explanation
Correct Answer: (C) Arthropoda
Arthropoda is the largest phylum (jointed appendages, chitin exoskeleton).
Q5 of 20
NEET NCERT Line-by-Line
The water vascular system is the unique feature of:
(A)
Mollusca
(B)
Echinodermata
(C)
Hemichordata
(D)
Annelida
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Correct Answer: (B) Echinodermata
Only Echinodermata possess a water vascular system with tube feet.
Q6 of 20
NEET NCERT Line-by-Line
Metameric segmentation is best shown by:
(A)
Round worms
(B)
Flatworms
(C)
Annelids
(D)
Sponges
Show Answer & NCERT Explanation
Correct Answer: (C) Annelids
Annelida show true metameric segmentation; they also have nephridia.
Q7 of 20
NEET NCERT Line-by-Line
The radula is a feeding organ of:
(A)
Arthropods
(B)
Molluscs
(C)
Echinoderms
(D)
Annelids
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Correct Answer: (B) Molluscs
The rasping radula belongs to molluscs.
Q8 of 20
NEET NCERT Line-by-Line
In which subphylum does the notochord persist throughout life?
(A)
Urochordata
(B)
Cephalochordata
(C)
Vertebrata
(D)
All chordates
Show Answer & NCERT Explanation
Correct Answer: (B) Cephalochordata
Cephalochordata (e.g. Branchiostoma) retain the notochord head-to-tail for life.
Q9 of 20
NEET NCERT Line-by-Line
Jawless vertebrates that are ectoparasites on fish belong to:
(A)
Chondrichthyes
(B)
Cyclostomata
(C)
Osteichthyes
(D)
Amphibia
Show Answer & NCERT Explanation
Correct Answer: (B) Cyclostomata
Cyclostomata (Petromyzon, Myxine) are jawless.
Q10 of 20
NEET NCERT Line-by-Line
An air bladder is present in:
(A)
Chondrichthyes
(B)
Osteichthyes
(C)
Both
(D)
Neither
Show Answer & NCERT Explanation
Correct Answer: (B) Osteichthyes
Osteichthyes (bony fish) have an air bladder; cartilaginous fish lack it and must keep swimming.
Q11 of 20
NEET NCERT Line-by-Line
Which classes are warm-blooded?
(A)
Reptilia & Aves
(B)
Aves & Mammalia
(C)
Amphibia & Mammalia
(D)
Only Mammalia
Show Answer & NCERT Explanation
Correct Answer: (B) Aves & Mammalia
Only Aves and Mammalia are homeothermic (warm-blooded).
Q12 of 20
NEET NCERT Line-by-Line
Which reptile has a 4-chambered heart?
(A)
Cobra
(B)
Turtle
(C)
Crocodile
(D)
Wall lizard
Show Answer & NCERT Explanation
Correct Answer: (C) Crocodile
The crocodile is the reptilian exception with a 4-chambered heart.
Q13 of 20
NEET NCERT Line-by-Line
Diploblastic organisation is seen in:
(A)
Porifera & Annelida
(B)
Coelenterata & Ctenophora
(C)
Platyhelminthes
(D)
Echinodermata
Show Answer & NCERT Explanation
Correct Answer: (B) Coelenterata & Ctenophora
Coelenterata and Ctenophora have two germ layers (diploblastic).
Q14 of 20
NEET NCERT Line-by-Line
Pheretima and Hirudinaria belong to:
(A)
Mollusca
(B)
Annelida
(C)
Arthropoda
(D)
Aschelminthes
Show Answer & NCERT Explanation
Correct Answer: (B) Annelida
Earthworm (Pheretima) and leech (Hirudinaria) are Annelids.
Q15 of 20
NEET NCERT Line-by-Line
An egg-laying mammal is:
(A)
Macropus
(B)
Pteropus
(C)
Ornithorhynchus
(D)
Balaenoptera
Show Answer & NCERT Explanation
Correct Answer: (C) Ornithorhynchus
Ornithorhynchus (platypus) is an oviparous mammal.
Q16 of 20
NEET NCERT Line-by-Line
Pleurobrachia and Ctenoplana belong to:
(A)
Coelenterata
(B)
Ctenophora
(C)
Porifera
(D)
Echinodermata
Show Answer & NCERT Explanation
Correct Answer: (B) Ctenophora
They are Ctenophores (comb jellies), known for bioluminescence and comb plates.
Q17 of 20
NEET NCERT Line-by-Line
Flame cells perform which function in flatworms?
(A)
Locomotion
(B)
Digestion
(C)
Excretion & osmoregulation
(D)
Reproduction
Show Answer & NCERT Explanation
Correct Answer: (C) Excretion & osmoregulation
Flame cells handle excretion and osmoregulation in Platyhelminthes.
Q18 of 20
NEET NCERT Line-by-Line
Bilateral larva but radial adult is characteristic of:
(A)
Annelida
(B)
Echinodermata
(C)
Mollusca
(D)
Arthropoda
Show Answer & NCERT Explanation
Correct Answer: (B) Echinodermata
Echinoderms have bilateral larvae and radially symmetric adults.
Q19 of 20
NEET NCERT Line-by-Line
Balanoglossus is an example of:
(A)
Hemichordata
(B)
Cephalochordata
(C)
Urochordata
(D)
Cyclostomata
Show Answer & NCERT Explanation
Correct Answer: (A) Hemichordata
Balanoglossus is a hemichordate (has a stomochord, not a true notochord).
Q20 of 20
NEET NCERT Line-by-Line
Which feature is NOT one of the four basic chordate characters?
(A)
Notochord
(B)
Dorsal hollow nerve cord
(C)
Pharyngeal gill slits
(D)
Ventral solid nerve cord
Show Answer & NCERT Explanation
Correct Answer: (D) Ventral solid nerve cord
Chordates have a dorsal hollow nerve cord, not a ventral solid one (that is the non-chordate pattern).