NEET Biology Animal Kingdom MCQs Set 23

Biology Objective Questions and Answers: Animal Kingdom

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Multiple Choice Questions

Question 1: Match the name of the animal (Column I) with one characteristics (Column II) and the phylum/class (Column III) to which it belongs. Column I Column II Column III
(a) Ichthyophis Terrestrial Reptilia
(b) Limulus Body covered by chitinous exoskeleton Pisces
(c) Adamsia Radially symmetrical Porifera
(d) Petromyzon Ectoparasite Cyclostomata
Show Answer & Explanation

Answer: (d) Petromyzon Ectoparasite Cyclostomata

Explanation:
1. Petromyzon is an ectoparasite and belongs to Cyclostomata; Ichthyophis is amphibian, Limulus is an arthropod, Adamsia is cnidarian.

Teacher's Note:
1. Match animal with class.

Question 2: Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?
(a) Sea horse and Flying fish - Cold blooded (Poikilothermal)
(b) Pteropus and Ornithorhyncus - Viviparity
(c) Garden lizard and Crocodile - Three chambered heart
(d) Ascaris and Ancylostoma - Metameric segmentation
Show Answer & Explanation

Answer: (a) Sea horse and Flying fish - Cold blooded (Poikilothermal)

Explanation:
1. Sea horse and flying fish are both fishes, so both are cold-blooded (poikilothermal).

Teacher's Note:
1. Fishes are poikilotherms.

Question 3: Which one of the following categories of animals, is correctly described with no single exception?
(a) All mammals are viviparous and possess diaphragm for breathing
(b) All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal)
(c) All bony fishes have four pairs of gills and an operculum on each side
(d) All sponges are marine and have collared cells
Show Answer & Explanation

Answer: (c) All bony fishes have four pairs of gills and an operculum on each side

Explanation:
1. Bony fishes have four pairs of gills covered by an operculum on each side. Not all mammals are viviparous (monotremes), not all reptiles have scales and sponges are not all marine.

Teacher's Note:
1. Operculum covers the gills.

Question 4: Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?
(a) E.coli– Full name Entamoeba coli, a commonly occuring bacterium in human intestine
(b) Musca domestica – The common house lizard, a reptile
(c) Plasmodium falciparum – A protozoan pathogen causing the most serious type of malaria
(d) Felis tigris – The Indian tiger, well protected in Gir forests
Show Answer & Explanation

Answer: (c) Plasmodium falciparum – A protozoan pathogen causing the most serious type of malaria

Explanation:
1. Plasmodium falciparum is a protozoan causing the most serious malaria; Musca domestica is the housefly and E. coli is Escherichia.

Teacher's Note:
1. Binomial rules.

Question 5: Which one of the following animals is correctly matched with its particular named taxonomic category?
(a) Housefly - Musca, an order
(b) Tiger - Tigris, the species
(c) Cuttlefish - Mollusca, a class
(d) Humans - Primata, the family
Show Answer & Explanation

Answer: (b) Tiger - Tigris, the species

Explanation:
1. In Panthera tigris the species name is tigris; Musca is a genus, Mollusca a phylum and Primates the order.

Teacher's Note:
1. Species epithet.

Question 6: Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
(a) Mammalia : give birth to young ones
(b) Reptilia : possess three-chambered heart with one incompletely divided ventricle
(c) Chordata : possess a mouth provided with an upper and a lower jaw
(d) Chondrichthyes : possess cartilaginous endoskeleton
Show Answer & Explanation

Answer: (d) Chondrichthyes : possess cartilaginous endoskeleton

Explanation:
1. Chondrichthyes always have a cartilaginous endoskeleton; mammals are not all viviparous, not all reptiles have a 3-chambered heart and jawless chordates exist.

Teacher's Note:
1. No exception.

Question 7: What will you look for to identify the sex of the following?
(a) Male shark - Claspers borne on pelvic fins
(b) Female Ascaris - Sharply curved posterior end
(c) Male frog - A copulatory pad on the first digit of the hind limb
(d) Female cockroach - Anal cerci
Show Answer & Explanation

Answer: (a) Male shark - Claspers borne on pelvic fins

Explanation:
1. Male sharks have claspers on the pelvic fins. The curved posterior end belongs to male Ascaris, the frog's copulatory pad is on the forelimb, and male cockroaches (not females) bear anal styles.

Teacher's Note:
1. Sexual dimorphism.

Question 8: Which one of the following statements is totally wrong about the occurrence of notochord while the other three are correct?
(a) It is absent throughout life in humans from the very beginning
(b) It is present throughout life in Amphioxus
(c) It is present only in larval tail in Ascidians
(d) It is replaced by a vertebral column in adult frog
Show Answer & Explanation

Answer: (a) It is absent throughout life in humans from the very beginning

Explanation:
1. The notochord is present in the embryonic stage in humans and replaced by the vertebral column later, so the statement that it is absent from the beginning is wrong.

Teacher's Note:
1. Notochord appears in all chordates at some stage.

Question 9: Which one of the following statements about all the four of Spongilla, Leech, Dolphin and Penguin is correct ?
(a) All are bilaterally symmetrical
(b) Penguin is homoiothermic while the remaining three are poikilothermic
(c) Leech is a fresh water form while all others are marine
(d) Spongilla has special collared cells called choanocytes, not found in the remaining three
Show Answer & Explanation

Answer: (d) Spongilla has special collared cells called choanocytes, not found in the remaining three

Explanation:
1. Choanocytes (collar cells) are found only in sponges such as Spongilla.

Teacher's Note:
1. Other three have no collar cells.

Question 10: Crocodile and penguin are similar to Whale and Dogfish in which one of the following features?
(a) Possess a solid single stranded central nervous system
(b) Lay eggs and guard them till they hatch
(c) Possess bony skeleton
(d) Have gill slits at some stage
Show Answer & Explanation

Answer: (d) Have gill slits at some stage

Explanation:
1. Crocodile, penguin, whale and dogfish are all chordates, which have gill slits at some stage in life.

Teacher's Note:
1. Chordate characteristic.

Question 11: Which one of the following pairs of animals comprises 'jawless fishes'?
(a) Mackerals and Rohu
(b) Lampreys and hag fishes
(c) Guppies and hag fishes
(d) Lampreys and eels
Show Answer & Explanation

Answer: (b) Lampreys and hag fishes

Explanation:
1. Lampreys and hagfishes are the jawless fishes (Agnatha).

Teacher's Note:
1. Mackerel and rohu have jaws.

Question 12: Which one of the following phyla is correctly matched with its two general characteristics?
(a) Mollusca – Normally oviparous and development through a trochophore or veliger larva
(b) Arthropoda – Body divided into head, thorax and abdomen and respiration by tracheae
(c) Chordata – Notochord at some stage and separate anal and urinary openings to the outside
(d) Echinodermata – Pentamerous radial symmetry and mostly internal fertilization
Show Answer & Explanation

Answer: (a) Mollusca – Normally oviparous and development through a trochophore or veliger larva

Explanation:
1. Molluscs are normally oviparous and develop through a trochophore or veliger larva. Arthropods have varied respiratory organs; Chordata have a cloaca in some; echinoderm fertilisation is external.

Teacher's Note:
1. Mollusc larvae.

Question 13: Which of the following pairs are correctly matched?
A. Crocodile – 4-chambered heart B. Sea Urchin – Parapodia
C. Obelia – Metagenesis D. Lemur – Thecodont
(a) Only A and B
(b) A, C and D
(c) B, C and D
(d) Only A and D
Show Answer & Explanation

Answer: (b) A, C and D

Explanation:
1. Crocodile has a 4-chambered heart, Obelia shows metagenesis and lemur has thecodont teeth; sea urchin has no parapodia.

Teacher's Note:
1. Parapodia belong to Nereis.

Question 14: Which one of the following is a matching pair of a body feature and the animal possessing it?
(a) Ventral heart – Scorpion
(b) Post-anal tail – Octopus
(c) Ventral central nervous system – Leechn
(d) Pharyngeal gill slits absent in embryo – Chamaeleon
Show Answer & Explanation

Answer: (c) Ventral central nervous system – Leechn

Explanation:
1. Leech, an annelid, has a ventral nerve cord; scorpion has a dorsal heart, octopus has no post-anal tail and chameleon has gill slits in the embryo.

Teacher's Note:
1. Annelids and arthropods: ventral nerve cord.

Question 15: What is common between parrot, platypus and kangaroo?
(a) Ovoparity
(b) Homoiothermy
(c) Toothless jaws
(d) Functional post-anal tail
Show Answer & Explanation

Answer: (b) Homoiothermy

Explanation:
1. Parrot, platypus and kangaroo are all homoiothermic (warm blooded).

Teacher's Note:
1. Birds and mammals are homeotherms.

Question 16: In which one of the following sets of animals do all the four give birth to young ones?
(a) Lion, bat, whale, ostrich
(b) Platypus, penguin, bat, hippopotamus
(c) Shrew, bat, cat, kiwi
(d) Kangaroo, hedgehog, dolphin, loris
Show Answer & Explanation

Answer: (d) Kangaroo, hedgehog, dolphin, loris

Explanation:
1. Kangaroo, hedgehog, dolphin and loris are mammals that all give birth to young ones; the other sets include ostrich, platypus, penguin or kiwi.

Teacher's Note:
1. Birds lay eggs.

Question 17: Which one of the following characters is not typical of the class-mammalia?
(a) Seven cervical verebrae
(b) Thecodont dentition
(c) Ten pairs of cranial nerves
(d) Alveolar lungs
Show Answer & Explanation

Answer: (c) Ten pairs of cranial nerves

Explanation:
1. Mammals have 12 pairs of cranial nerves, not 10, so ten pairs is not typical.

Teacher's Note:
1. Seven cervical vertebrae.

Question 18: The characteristics of class Reptilia are :
(a) Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears
(b) Body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca
(c) Fresh water animals with bony endoskeleton, air-bladder to regulate buoyancy
(d) Marine animals with cartilaginous endoskeleton, body covered with placoid scales
Show Answer & Explanation

Answer: (a) Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears

Explanation:
1. Reptiles have a dry cornified skin with epidermal scales and no external ears (tympanum).

Teacher's Note:
1. Amphibians have moist skin.

Question 19: Which one of the following animals is correctly matched with its one characteristics and the taxon? Animal Characteristic Taxon
(a) Duckbilled platypus Oviparous Mammalian
(b) Milipede Ventral nerve cord Arachnida
(c) Sea Anemone Triploblastic Cnidaria
(d) Silverfish Pectoral and Pelvic fins Chordata
Show Answer & Explanation

Answer: (a) Duckbilled platypus Oviparous Mammalian

Explanation:
1. Duck-billed platypus is an oviparous mammal; millipede is a myriapod, sea anemone is diploblastic and silverfish has no fins.

Teacher's Note:
1. Mammals can be oviparous.

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