Question # 1

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

Which of the following has chitinous cuticle in the exoskeleton

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Arthropoda

Porifera

Echinodermata

Annelida

Parapodia are organs of locomotion in ……

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Leech

Planaria

Earthworm

Neries

Which of the following is not triploblastic

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Cnidaria

Arthropoda

Platyhelminthes

Aschelminthes

Radial symmetry is present in

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Adults of annelida

Adults of echinodermata

Adults of Cnidaria

Both B and C

Platyhelminthes have

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Asymmetrical body

Radial symmetry

Bilateral symmetry

Diploblastic organization

Notochord is present throughout life in

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Urochordates

Chordates

Cephalochordates

Vertebrates

Which characteristic is common in both cnidarians and flatworms

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Digestive system with a single opening

Dorsoventrally flattened bodies

Radial symmetry

Flame cells

The pore by which the water leaves the body of sponges is called

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Ostia

Osculum

Spicules

Medreporite

Animals that have their body cavity filled with parenchyma are

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Acoelomates

Coelomates

Pseudocoelomates

Tunicates

Body of _____ consists of segments called proglottids which contains mainly sex organ

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Planaria

Fasciola

Ascaris

Tapeworm

Pick up the most developed coelomates

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Echinoderms

Annelids

Chordates

Insects

The larva formed during the life cycle of Annelida is

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Glochidium larva

Bipinnaria larva

Trochophore larva

Tornaria larva

It is not a germ layer

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Ectoderm

Endoderm

Blastoderm

Mesoderm

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

Triploblastic, unsegmented, acoelomates exhibiting bilateral symmetry and reproducing both asexually and sexually, with some parasitic forms are included in

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Annelida

Arthropoda

Platyhelminthes

Cnidaria

Skeleton of echinoderms is originated from

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Ectoderm

Endoderm

Mesoderm

Epidermis

Snails are the intermediate hosts of

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Fasciola hepatica

Schistoma

Taenia solium

Ancyclosoma duodenale

In earthworm, the surface responsible for the gaseous exchange is

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Skin

Gills

Body surface

Trachea

Common housefly is involved in spread of all diseases except

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Hepatitis

Malaria

Dysentery

Cholera

The only phylum included in Grade Radiata is:

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Porifera

Aschelminthes

Platyhelminthes

Cnidaria

_____ is a good example of polymorphism

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Hydra

Obelia

Starfish

Euplectella

Which one of the following phylum is the example of coelomates

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Flatworms

Round worms

Segmented worms

Unsegmented worms

Which of the following is true about mesoglea

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Acellular

Mesodermal

Cellular

Multicellular

Which of the following group of animals is a link between aquatic and terrestrial animals?

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Fish

Amphibians

Reptiles

Birds

A group of animals with distinct germinal layers in adult stage are grouped in

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Cnidaria

Arthropoda

Aschelminthes

Platyhelminthes

Phylum of asymmetrical animals is

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Nematoda

Platyhelminthes

Cnidaria

Porifera

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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