Radula is found in
  • Pila sp.
  • Chiton sp.
  • Lamellidens sp.
  • Pinctada sp.
Sharks, skates, and rays are also called ______ fishes.
  • Jawless
  • Bony
  • Cartilaginous
  • Freshwater
Turtles are
  • Arthropods
  • Pisces
  • Reptiles
  • Molluscs
The clam nervous system is composed of
  • labial palps
  • one pair of ganglia
  • two pairs of ganglia
  • three pairs of ganglia
Choose the correct pair.
  • Hippocampus – 3-chambered heart
  • Rana – 2-chambered heart
  • Crocodilus – 4-chambered heart
  • Pavo – 3-chambered heart
Who wrote the book Systema Naturae?
  • Lamarck
  • Darwin
  • Wallace
  • Linnaeus
Osteichthyes belongs to
  • class amphibia
  • super class pisces
  • super class tetrapoda
  • division agnatha
Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
  • Mammalia : give birth to young ones
  • Reptilia : possess 3-chambered heart with one incompletely divided ventricle
  • Chordata : possess a mouth provided with an upper and a lower jaw
  • Chondrichthyes : possess cartilaginous endoskeleton
Which one of the following phylum is characterized by absence of true coelom?
  • Annelida
  • Mollusca
  • Echinodermata
  • Nematoda
Which of the following is a pseudocoelomate?
  • Platyhelminthes
  • Aschelminthes
  • Mollusca
  • Hemi-chordates
Which kind of symmetry occurs in sea anemone?
  • Bilateral
  • Radial
  • Asymmetry
  • None of these
Phylum that doesnt have a true coelom is
  • Platyhelminthes
  • Annelida
  • Echinoderms
  • Arthropoda
Male mosquitoes usually feed on
  • Garbage
  • Human blood
  • Flower sap
  • All of the above
Bed Bugs contribute to the spread of
  • Typhoid
  • Yellow fever
  • Typhus
  • Trench fever
Which one of the following is NOT a characteristic of phylum Annelida?
  • Ventral nerve cord
  • Closed circulatory system
  • Segmentation
  • Pseudocoelom
______ are devoid of respiratory, excretory and circulatory organs.
  • Threadworms
  • Sponges
  • Tapeworms
  • Liver fluke
Fluke infections are diseases of the _______ in humans.
  • Blood
  • Bile
  • Digestive tract
  • Lungs
Water-Vascular system is found in
  • Sea-anemone
  • Sea-pen
  • Sea-cucumber
  • Sea-horse
Order Rhynchocephalia consists of
  • Tuataras
  • Lizards and snakes
  • Turtles and tortoises
  • Crocodiles, alligators, caimans
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