Solved MCQS of Zoology Set 1

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Solved MCQS of Zoology


Oligochaetes are
Monoecious dioecious.
asexual.
Monoecious.
Dioecious.

Members of class phytomastigophoreans are
None of above
Monoeious
Both A and B are correct
Dioecious

A distinctive feature of members of the subclass Hirudinea is
Palps.
Parapodia.
Anterior and Posterior suckers.
Tentacles.

Triploblastic is the characteristic of phylum
Nemerteans
Annelida
Nematoda
Platyhelminths

Presence of metameric segmentation
Both A and C are correct
Daphnia
Lumbricus
Arenicola

The annelid class whose members are mostly marine is
Hirudinea.
Oligochaeta.
Polychaeta.
Clitellata.

_____ is a developmental process that occurs in gastropods and results in a 180 degree counterclockwise twisting of the visceral mass and mantle cavity
Gastrulation
Involution
Torsion
Epiboly

Most marine protozoa have solute concentration ———— to that of their environment
Hypotonic
similar
Hypertonic

Which one is not a characteristic habitat of Archaea?
Ocean floor
Fresh water
High salt
Acidic environment

Which of the following is not true with respect to nematode reproduction?
Most nematodes are dimorphic
Males are larger than the females
Most nematodes are dioecious
Gonads lie free in the pseudocoelom.
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