(2) (a) 4
(3) (c) Annelida
(4) (c) 7
(5)(d) Platyhelminthes
(6) (d) None of these
(7) (c) All of these
(8) (e) None of these
(9) (b) Mesodermis
(10) (c) Wing beat
(11) (b) Ventral
(12) (a) Visceral cavity
(13) (a) Exoskeleton
(14) (b) Fish
(15) (b) Insects
(16) (b) Not completely lined by Mesodermal epithelium
(17) (b) Annelida
(18) (e) All of these
(19) (b) Osmoregulation
(20) (b) Arachnida
(22) (d) Mitochondrion
(23) (a) Protein formation
(24) (e) All of these
(25) (b) Uric acid
(26) (c) Attachment with RBC surface
(27) (c) Pituatary
(28) (a) Carbohydrate metabolism
(29) (d) None of these
(30) (a) Sex characters
(31) (b) Y-chromosome is present
(32) (a) Primary Non-disjunction
(33) (c) Bacteria
(34) (a) Charles Darwin
(35) (a) Environment forces a character
(36) (c) Selection occurring in one direction
(37) (a) Ontogeny repeats phylogeny
(38) (b) Interact for energy flow
(39) (a) Nitrogen is a gas
(40) (a) Gene mutation
42) e) None of these
43) e) None of these
44) b) regeneration
45) e) None of these
46) d) parapodium
47) e) None of these
48) c) echinodermata
49) b) annelida
50) d) sitting posture