Question # 1

------------ depict a sequence in the origion of derived characters

Choose an answer

Cladogram

Monogram

Phylogenetic tree

None of above

Animals of phylum cnidaria are

Choose an answer

Diploblastic

Triploblastic

None of above

The major feature which unify aschelminths is

Choose an answer

nervous system.

muscular system.

excretory system.

pseudocoelom.

Members of class phytomastigophoreans are

Choose an answer

Dioecious

Monoeious

Both A and B are correct

None of above

Ctenophorans and Anthozoans lie in

Choose an answer

Bilateral symmetry

Radial Symmetry

Asymmetry

Pentaradial symmetry

Scientific name of blood fluke is

Choose an answer

Schistosoma

Taenia solium

Echinocissus granulosus

Clonorchis sinensis

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

Choose an answer

Paramyxa

Vorticella

Paramecium

Balantidium

A ----------- is a developmental stage of a freshwater bivalve that is parasitic on fishes

Choose an answer

veliger

Kinorhynchs.

Acanthocephalans.

Nemerteans.

Which of the following is not true with respect to nematode reproduction?

Choose an answer

Most nematodes are dioecious

Most nematodes are dimorphic

Males are larger than the females

Gonads lie free in the pseudocoelom.

Presence of metameric segmentation

Choose an answer

Lumbricus

Daphnia

Arenicola

Both A and C are correct

Members of the gastropod subclass Pulmonata are predominantly freshwater or terrestrial. Their mantle is modified into a lung, which opens to the outside of the mantle cavity through a/an

Choose an answer

Siphon.

Pneumostome.

Umbo.

Operculum

Primary host for Fasciola hepatica is

Choose an answer

Snail

Sheep

Cattle

Both A and B are correct

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

Choose an answer

It contains the gills

It secretes the shell

It is used in locomotion

It contains gonads and digestive glands

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

Choose an answer

mantle

shell

visceral mass

head-foot

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

Choose an answer

True

False

none of the above

The aschelminthis contain organs for gas exchange and circulation.

Choose an answer

True

False

none of the above

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

Choose an answer

incomplete digestive tract

a muscular pharynx

constant cell numbers (eutely)

adhesive glands

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

Choose an answer

Arcella

Ameoba proteus

polystomella

Difflugia

Of the following, which is the most recently described pseudocoelomate animal phylum?

Choose an answer

Pariapulida

Acanthocephala

Loricifera

Nematomorpha

Phylum Rotifera consist of --------- classes.

Choose an answer

two

three

four

five

More Classes

Other Links

NAT II Biological Science Zoology MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer