1. which character is only present hemichordates.
(a) Notochord (b) Dorsal nerve chord
(c) Gill slits (d) postanal tail
2. Hemichordates bodies are:
(a) soft worm like (b) hard
(c) sponges like (d) having scale
3. Classes of hemichordates are:
(a) three (b) two
(c) five (d) four
4. Class Enteropneusta have species
(a) 80 (b) 90
(c) 70 (d) 60
5. Class Enteropneusta includes:
(a) Acorn worm (b) ascidiacea
(c) rhabdopleura (d) thaliacea
6. Planctosphearoidea have poorely developed:
(a) nervous system (b) ceolom
(c) gut (d) cavity
7.It has only one specie
(a) planctosphearoidea (b) pterobranchia
(c) sorbaseae (d) chordata
8. Number of species in chordata :
(a) 45000 (b) 4500
(c) 45000000 (d) 450
9.Tunicates are:
(a) urochordata (b)hemichordata
10.The muscular contraction of the body wall produce water currents in
(a) class Ascidiacea (b) Class thaliacea
(d) class appendiculariae (d) class soberacea
11. How many classes of sub phylum vertebra
(a) 9 (b) 10
(c) 8 (d) 6
12. Characteristics of class myxini are
(a) having jaws (b) having no paie appendages
(c) worm like bodies (d) cartelagenous skeleton
13. class osteichthyes includes
(a) Hagfish (b) Lampreys
(c)Bony fish (d) Skates
14. Amphibions have moisture skin because of:
(a) mucous (b) keratinized protein
(c)Glands (d) Adhesive Glands
15. Class reptilia have:
(a) dry skin (b) moist skin
(c) epidermal scale (d) both (a) and (c)
16. These are endothermic
(a) aves (b) Reptiles
(c) both (a) and (d) (d) mammals
17. Hemichordata have:
(a) open circulatory system (b) closed circulatory system
(c) incomplete digestive tract (d) having gut
18. The size of enteropneusta is:
(a) 10 to 40 cm (b) 10 to 50 cm
(c) 10 to 20 cm (c) 10 to 60 cm
19.How many species of acorn worms are:
(a) 60 (b) 50
(c) 80 (d) 70
20.Acorn worm body is divided into_____ parts.
(a) 3 (b) 5
(c) 4 (d) 2
21.The enteropneusts common name is because of:
(a) appearane ofproboscis (b) gut like
(c) flattened body (d) U shaped
22. Collar is present to the proboscis:
(a) Posterior (b) ventrally
(c) dorsally (d) anterior
23. The mouth of acorn worm is located between:
(a) Collar and trunk
(b) trunk and proboscis
(c) darsally
(d) proboscis and collar
24 Phyrungeal slits are the opening between:
(a) phyranx and the outside of body
(b) collar and trunk
(c) trunk only
(d) proboscis and trunk
25. cilia and mucous help acorn worm in:
(a) digestion (b) movement
(c) gland (d) feeding
26. The digestive tract of enteropnests is simple:
(a) U shaped (b) tube like
(c) gut (d) none of these
27. Which gland secrete enzyme to digest the food in acorn worm?
(a) Hepatic sac (b) thyroid gland
(c) ciliary gland (d) pituiary gland
28. In acorn worm fecal material is called:
(a) Casting (b) eutely
(c) ecdysis (d) none of these
29. The gases are exchanged in acorn worm by
(a) active transport (b) osmosis
(c) through skin (d)diffusion
30. Planula like larvae is present in:
(a) chordata (b) pterobranchia
(c) enteropnesta (d) hemichordata
31.Unique chracters in chordata are:
(a) notochord and postanal tail
(b) phyrngeal slits
(c) dorsal tubular nerve chord
(d) all of these
32. The chordate have :
(a) complete digestive tract
(b) dorsal nerve chord
(c) open circulatory system
(d) none of these
33. The divertcula of chordates are called:
(a) phyrangela pouch
(b) phyrangela slit
(c) postanal tail
(d) nerve chord
34. Another name of tunicate is:
(a) notochords (b) seasquirts
(c) acorn worm (d) aves
35. What is the largest class of urochordata?
(a) thaliaciae (b) vertebra
(c) sorberacea (d) ascidia
36. Function of siphon is:
(a) for attacment (b) locomotion
(c) allow sea water to circulate through body
(d) feeding
37.Root like extension of tunic are called
(a) oral siphon (b)stolens
(c) atrial siphon (d) casting
38. tunics are composed by:
(a) blood vessels (b) proteins,salts,cellulose
(c) blood cells (d) extensions
39. How hydroskeleton is produced in tunicates?
(a) by body wall epithilium (b) elasticity
(c) hydrostatic skeleton (d) sea water confined to internal chamber
40. Where is the nervous system of tunicates?
(a) in hydrostatic skeleton (b) in pharynx
(c) in body wall (d) in ganglion
41. tunicates are sensitive to:
(a) chemical stimuli (b) mechanical stimuli
(c) sensory organ (d) both (a) and (b)
42. what are stigmas?
(a) pharyngeal slits (b) tenticles
(c) pharynx (d) cavity
43. in tunicates,which groove is present in pharynx?
(a) mucous sheath (b) dorsal ciliated groove
(c) ventral ciliated groove (d) oral siphon
44. tinicate heart is present at:
(a) pharynx (b) larynx
(c) ventral region (c) dorsal region
45. whichbiood plasma is colourless?
(a) reptiles blood plasma (b) tunicate blood plasma
(c) acorn worm blood plasma (d) none of these
46. which gland have excretory function in intestine?
(a) sebacious gland (b)pyloric gland
(c) thyroid gland (d) pitiatary gland
47. urochordata are
(a) parthenogenetic (b) amictic
(c) dioecious (d) monoecious
48. sub phylum cephalochordata are called
(a) lancelets (b) tunicates
(c) acorn worm (d) trophic
49. cephalochordates consists of_____ genera:
(a) 2 (b) 3
(c) 4 (d)5
50. Number of species of cephalochordates are
(a) 45 (b) 55
(c) 65 (d) 52
51. size of cephalochordates is
(a) upto 50 cm (b)upto 60 cm
(c) upto 70 cm (d) upto 30 cm
52. which type of larva is developed in sub phylum urochordata
(a) worm like (b) larva like
(c) tadpole like (d) snail like
53. atrium is a _____
(a) vacum (b) cavity
(c) ceolom (d)chamber
54. digestive tract of urochordates is
(a) tube like (b) U shaped
(c) gut like (d) incomplete
55. cephalochordates are______like animals
(a) worm (b) snail
(c) larva (d) tadpole
56. the shape cephalochordates areare
(a) flattened (b) streamline
(c) rounded (d) none of these
57. in cephalochordata, notochords are used for
(a) burrowing (b) movement
(c) feeding (d) support
58. cephalochordates lack
(a) true heart (b) true cavity
(c) true ceolom (d) none of these
59. cephalochordates includes
(a) 4 genera (b) 2 genera
(c) 3 (d) 5
60. Ciliated finger like projections hang from the ventral side of the oral hood is called:
(a) cirri (b) trophi
(c) eutely (d) ecdysis
61. cirri is used in
(a) feeding (b) movement
(c) support (d) none of these
62. in cephalochordates mouth opens into a
(a) larynx (b) aboral
(c) large pharynx (d) oral surface
63. numerous pairs of pharyngeal slits are present in
(a) parynx (b) cirri
(c) atrium (d) larynx
64. the opening from the atrium to the outside is called
(a) aorta (b) atrium
(c)atriopore (d) cirri
65. gametes are shed into the
(a) atrium (b) aorta
(c) pharynx (c) larynx
66. peodomorphosis take place in
(a) animal kingdom (b) fungi
(c) plant (d) protists
67. vertebra have________ classes
(a) 8 (b) 9 (c) 10 (d) 20
68. vertebrates and chordrates have bony
(a) endoskeleton (b) exoskeleton
(c) hydrostatic skeleton (d) none
69. jawless fishes were common in
(a) ordovician period (b) jurrasic period
(c)carboniferous (d) none
70. cephalochordata are
(a) dioecious (b) monoecious
(c) parthenogenetic (d) none
