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MDCAT Biology Chapter 6 Diversity among Animals Online Test MCQs With Answers
Question # 1
The pairs of gills present in cyclostomata are
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5-7
10-12
6-14
4-5
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Question # 2
Which of the following is not triploblastic
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Cnidaria
Arthropoda
Platyhelminthes
Aschelminthes
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Question # 3
Phylum of asymmetrical animals is
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Nematoda
Platyhelminthes
Cnidaria
Porifera
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Question # 4
Features of most complex animals are
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Triploblastic with true coelom
Triploblastic with pseudocoelom
Triploblastic with bilateral symmetry
Triploblastic with radial symmetry
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Question # 5
A group of animals with distinct germinal layers in adult stage are grouped in
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Cnidaria
Arthropoda
Aschelminthes
Platyhelminthes
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Question # 6
The body of a Hydra can be divided in two equal halves vertically in
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One plane only
Two planes
Three planes
Any plane
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Question # 7
_____ is a good example of polymorphism
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Hydra
Obelia
Starfish
Euplectella
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Question # 8
It is not a germ layer
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Ectoderm
Endoderm
Blastoderm
Mesoderm
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Question # 9
Pick up the most developed coelomates
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Echinoderms
Annelids
Chordates
Insects
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Question # 10
Notochord is present throughout life in
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Urochordates
Chordates
Cephalochordates
Vertebrates
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Question # 11
The cartilaginous fishes contain scales ….
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Placoid
Cycloid
Ganoid
Ctenoid
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Question # 12
In earthworm, the surface responsible for the gaseous exchange is
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Skin
Gills
Body surface
Trachea
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Question # 13
Parapodia are organs of locomotion in ……
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Leech
Planaria
Earthworm
Neries
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Question # 14
Highest degree of regeneration is present in sponges because of
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Undifferentiated cells
Simplest organization
Ability to reproduce
Absence of germ layers
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Question # 15
Which of the following has chitinous cuticle in the exoskeleton
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Arthropoda
Porifera
Echinodermata
Annelida
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Question # 16
It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic nor triploblastic. It is probably a
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Flatworm
Nematode
Cnidarian
Sponge
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Question # 17
Animals devoid of respiratory, excretory and circulatory organs are
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Tapeworms
Sponges
Earthworm
Live fluke
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Question # 18
Radial symmetry is present in
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Adults of annelida
Adults of echinodermata
Adults of Cnidaria
Both B and C
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Question # 19
Animals involved in the construction of corals are
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Polyps
Medusae
Gonozooids
None
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Question # 20
Which of the following is a distinguishing character of sponges
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Tentacles
Ceoleteron
Choanocytes
Calcareous skeleton
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