Question # 1

Where would you look for a kinorhynch?

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a marine environment

a freshwater environment

on land that is relatively moist

on land that is relatively dry

All are the characteristics of phylum Apicomplexa except------------------

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Single type of nucleus

Have resistant spores

Apical complex for penetrating host cells

No cilia and flagella

Annelids and Arthropods share all of the following characteristics except one. Select the exception.

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A ventral cord

A complete digestive tract

Metamerism

An exoskeleton

The molluscs are most closely related to the

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Annelids

Enhinoderms

Arthropods.

Chordates

Which one of the following do not lie in phylum Cnidaria?

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obelia

aurelia

Actinia

Taenia

The mantle of most mollusks

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is modified for locomotion

is used in attracting prey

secretes the shell

supports the radula

All are the characteristics of phylum cnidaria except

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Presence of mesoglea

Contain mesenchyme

gastrovascular cavity

contain nematocysts

Coccidians and Plasmodium are the examples of phylum---------.

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Microspora

Acetoospora

Apicomplexa

Myxozoa

Ctenophorans and Anthozoans lie in

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Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

The annelid class whose members are mostly marine is

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Hirudinea.

Oligochaeta.

Polychaeta.

Clitellata.

The scientific name of the common pinworm is

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Ascaris lumbricoides.

Enterobius vermicularis

Trichinella spiralis.

Wuchereria bancrofti

The Gastropoda and the Cephalopoda form a clade characterized by a dorsoventrally elongate body and shell coiling.

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True

False

None of Above

------------- harbours the sexual stages of the parasite

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Intermediate host

Definitive host

None of above

------------ gave rise to the kingdom protista

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Viruses

Archaea

bacteria

None of above

No free living larval forms occur in the annelid subclass(es)

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Hirudinea

IIirudinea and Oligochaeta

Polychaeta

Polychaeta and Oligochaeta

Animals of phylum cnidaria can be found in

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Aquatic environment

Marine environment

Dry and harsh environment

Both A and B are correct

The scientist who describe a system of classification that distinguished between kingdoms according to cellular organization and mode of nutrition was

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R. M. Kristensen

Carolus Linnaeus

Rebert II. Whittaker

None of above

The main propulsive structure(s) in the circulatory system of an earthworm is (are)

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Hearts

Dorsal and ventral blood vessels

Seminal vesicles

The typhlosole.

Elephantiasis is caused by filarial worms (i.e., Wuchereia spp.).

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True

False

none of the above

All the following are unique to the molluscs except one. Select the exception.

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mantle

shell

visceral mass

head-foot

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