Chondrichthyes is characterised by

• Placoid scale

• Placoid scale and ventral mouth

• Ventral mouth

• Ctenoid scale and ventral mouth

Which of the following cells in earthworm play a role similar to liver in vertebrates?

• Amoebocytes

• Mucocytes

• Chloragogen cells

• Epidermal cells

Branch of zoology dealing with the study of fishes is called

• Arthrology

• Ichthyology

• Saurology

• Herpetology

The most primitive vertebrates are

• Ostracoderms

• Cephalochordates

• Placoderms

• Cyclostomes

Select incorrect pair

• Porifera – Choanocytes

• Coelenterata – Nematocysts

• Annelida – Segmentation

• Monera – Eukaryote

Correctly matched set of phylum, class and example is

• Protozoa-Mastigophora-Entamoeba

• Mollusca=-Bivalvia-c-Pmcrcdc

• Arthropoda-Diplopoda-Scolopendra

• Chordata-Cyclostomata-Phrynosoma

Bilateral symmetry, metameric segmentation, coelom and open circulatory system are the features of

• Annelida

• Arthropoda

• Mollusca

• Echinodermata

Theory of continuity of germplasm was propounded by

• Mendel

• Lamarck

• Weismann

• Haeckel

Match the following and select the correct option.

• A	B	C	D	E
  3	5	2	1	4

• A	B	C	D	E
  3	1	5	2	4

• A	B	C	D	E
  1	2	3	4	5

• A	B	C	D	E
  2	3	4	1	5

Ichthyology is study of

• Aves

• Amphibians

• Reptiles

• Fishes