Question # 1

Members of class phytomastigophoreans are

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Dioecious

Monoeious

Both A and B are correct

None of above

A mosquito is necessary for development of Trichinella spiralis

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True

False

none of the above

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

Animals of phylum cnidaria are

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Diploblastic

Triploblastic

None of above

Polymorphism is characteristic of phylum

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phylum Nematoda

phylum Annelida

phylum Cnidaria

None of above

Which of the following is true of the visceral mass of a mollusc?

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It contains the gills

It secretes the shell

It is used in locomotion

It contains gonads and digestive glands

Except ---------------- all are the members of class Lobosea

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Arcella

Ameoba proteus

polystomella

Difflugia

Primary host for Fasciola hepatica is

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Snail

Sheep

Cattle

Both A and B are correct

Number of the phylum Nematomorpha are commonly called the ------------- worms.

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horsehair

Gordian

round

both a and b are correct

A regular arrangement of microtubules called --------- underlies the plasma membrane of many protozoa

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Pellicle

mesosomes

peroxisomes

Both A and B are correct

Members of the class Monoplacophora are wormlike molluscs that lack a shell, crystalline style, and foot; they live in vertical burrows on the deep-sea floor.

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True

False

None of Above

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

Which of the following is not a common feature of aschelminth?

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incomplete digestive tract

a muscular pharynx

constant cell numbers (eutely)

adhesive glands

Following are the chharacteristics of phylum Annelida except

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Distinct head

parapodia

Hermaphrodite

Thoracic appendages

Which of the following is true of the radula of most molluscs?

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It is used in reproduction

It is used in excretion

It is used in rasping food

It is used in gas exchange

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

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Intermediate host

Definitive host

None of above

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

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

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Hirudinea

IIirudinea and Oligochaeta

Polychaeta

Polychaeta and Oligochaeta

All of the following are characteristics of the phylum nematoda except?

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triploblastic, bilateral, vermiform

cuticles are not shed

complete digestive tract with a mouth surrounded by lips bearing sense organs

body wall has only longitudinal

Ctenophorans and Anthozoans lie in

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Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

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