Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?
Which one of the following in birds, indicates, their reptilian ancestry?
Scales on their hindlimbs
Two special chambers crop and gizzard in their digestive tract
Eggs with a calcareous shell
Select incorrect pair
Porifera – Choanocytes
Coelenterata – Nematocysts
Annelida – Segmentation
Monera – Eukaryote
Bilateral symmetry, metameric segmentation, coelom and open circulatory system are the features of
Gigantism and acromegaly are due to
If a child is of O blood group and his father is of B blood group, the genotype of father is
Correctly matched set of phylum, class and example is
Pinctada sp. is the bivalve molluscs, commonly known as pearl oysters. These belong to sub-class-Lamellibranchia, class-Bivalvia or Pelycipoda, phylum-Mollusca and Kingdom-Animalia.