Bilateral symmetry, metameric segmentation, coelom and open circulatory system are the features of
Annelida
Arthropoda
Mollusca
Echinodermata
C.
Mollusca
The members of phylum-Arthropoda show bilateral symmetry, three germ layers in body wall, external metamerism, jointed and paired appendages, haemoocel and open type of circulatory system with dorsal heart.
Select incorrect pair
Porifera – Choanocytes
Coelenterata – Nematocysts
Annelida – Segmentation
Monera – Eukaryote
Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?
Neutrophils
Basophils
Eosinophils
Monocytes
If a child is of O blood group and his father is of B blood group, the genotype of father is
IO IO
IA IB
IO IB
IO IA
Correctly matched set of phylum, class and example is
Protozoa-Mastigophora-Entamoeba
Mollusca=-Bivalvia-c-Pmcrcdc
Arthropoda-Diplopoda-Scolopendra
Chordata-Cyclostomata-Phrynosoma
Which one of the following in birds, indicates, their reptilian ancestry?
Scales on their hindlimbs
Four-chambered heart
Two special chambers crop and gizzard in their digestive tract
Eggs with a calcareous shell