A.Hairs, external segmentation and 3 pairs of legs
B.Scales, antennae and segmented body
C.Chitinous exoskeleton, external segmentation and paired as well as jointed appendages
D.External segmentation, pair of chelicerae and a pair of pedipalpi
A.Chondrichthyes
B.Osteichthyes
C.Both (a) & (b)
D.None of these
A.Protozoa
B.Nematoda
C.Platyhelminthes
D.Echinodermata
A.Amphibians
B.Reptiles
C.Birds
D.All of these
A.Entamoeba, Trypanosoma, Plasmodium
B.Hydra, Aurelia, Obelia
C.Oyster, Octops, Otter
D.Pan, Pango, Hyalobates
A.Lungs, 4 chambered heart, kidneys
B.Lungs, 4 chambered heart vertebral column
C.Hairs, mammary glands, viviparity
D.Gills, fins, viviparity
A.Protozoa
B.Porifera
C.Echinodermata
D.Mollusca
A.Renal-portal system
B.Hepatic-portal system
C.Both (a) & (b)
D.None of these
A.Jelly-fish, cuttle-fish, silver-fish
B.Crab, lobster, oyster
C.Frog, toad, salamander
D.Bat, pigeon, crow
A.Fishes with a single gill aperture
B.Mammals with cloacal opening
C.Protozoans with single flagellum
D.None of these animals
