Invertebrates Solved MCQs Questions

1. Protozoa are mostly ?

A. Prokaryotic in Nature
B. Eukaryotic in Nature
C. Both A and B
D. None of these


2.Skin gills in starfish play role in ?

A. locomotion
B. thermoregulation
C. osmoregulation
D. gas exchange and excretion


3. Ampulla contract and force fluid into ?

A. Suckers
B. Podia
C. Radial canal
D. Stone canal


4. Which class of Echinoderm lack Arms ?

A. Asteroidea
B. Ophiuroidea
C. Echinoidea
D. Crinoidea


5. Body surface is usually covered with moveable spines ?

A. Crinoidea
B. Asteroidea
C. Ophiuroidea
D. Echinoidea


6. The examples of Echinoidea are ?

A. Sea urchins
B. Sand Dollars
C. Sea Biscuits
D. All of these


7. Which one of the following group of Porifera is primarly shallow water and tropical ?

A. Calcarea
B. Hexactinellida
C. Demospongia
D. none


8. The group of Porifera considered as “glass sponges” is ?

A. Calcarea
B. Hexactinellida
C. Demospongia
D. none


9. The group of Porifera having siliceous 6-rayed spicules are ?

A. Calcarea
B. Hexactinellida
C. Demospongia
D. none


10. Phylum Porifera includes are all ?

A. sessile
B. non sessile
C. motile
D. none


Invertebrates Solved MCQs Questions


11. Skeletal elements of Phylum Porifera’s animals consist of ?

A. Calcium carbonate
B. Silicon dioxide
C. Mucopolysaccaride
D. a and b both


12. In the structural conditions of sponges, leucon has ?

A. One main chamber of choanocyte
B. Two chambers of choanocyte
C. Multiple layers of choanocytes chambers
D. None of these


13. In the food capturing by choanocytes, beating of flagellum creates________ inside collar ?

A. Negative pressure.
B. Positive pressure
C. Has no effect produce inside collar
D. May be positive may be negative


14. In Phylum Porifera, beating of flagellum draws food to outside of mucus covered _____ of collar ?

A. Villi
B. Microvilli
C. Food vacuole
D. None of these


15. Phylum Porifera considered to be plants untill ?

a. 1868
b. 1794
c. 1996
d. 1765


16. Function of amoebocytes ?

A. Store food
B. Transport wastes
C. Control of flow rate
D. All


17. Phylum Porifera’s diversity consist of major groups ?

A. 2
B. 3
C. 4
D. 5


18. In porifera sperms enter chaonocytes and loses ____ ?

 

A. Digits
B. Tail
C. Hands
D. Feet


19. In porifera the larvae released with flagellated cells on _____ ?

A. Outside
B. Inside
C. Laterally
D. Ventrally


20. Sponges are over harvested in ?

A. france
B. spain
C. Greece
D. Japan


21. Sponges have toxic _____ metabolites within spherulous cells ?

A. primary
B. secondary
C. primay and secondary
D. none


22. Newly developed pinacoderms derived from micromere ?

A. Yes
B. No


23. In sponges both egg and sperm are spawned in water column ?

A. Yes
B. No


24. In sponges dissolved carbon dioxide is swept out the osculum via ?

A. Duffusion
B. Water currents
C. Vesicles
D. Sense organs


25. Gas exchange in annelids occurs across ?

A. Body wall
B. Appendages
C. Gills
D. All of these


26. In the food capturing by choanocytes, beating of flagellum creates ________ inside collar ?

A. Negative pressure.
B. Positive pressure
C. Has no effect produce inside collar
D. May be positive may be negative


27. Which sensory organ of annelids is “useful to burrowers” ?

A. Nuchal organ
B. Ocelli
C. Statocysts
D. None of these


28. Which of the following is the function of tubes in annelids ?

A. Protection
B. Hiding out
C. Digestion
D. Both A and B


29. Polychaeta means ?

A. Many chaetae
B. Segments
C. Appendages
D. Many cilia


30. Beard worms live deep in oceans typically near ?

A. Hydrothermal vent
B. Deep sea vent
C. None of these
D. All of these


31. polychaeta posses appendages called ?

A. ocelli
B. Parapodia
C. Nephrostome
D. Antennae


32. Impulses travel up to — faster than neurons of average diameter in annelids ?

A. 20X
B. 40X
C. 60X
D. 25X


33. In annelids typical unicellular receptors distributed on ?

A. head, body
B. head, body and appendages
C. head and body and nerve
D. only appendages


34. Nephridiophore opens to—- of animals ?

A. dorsal
B. interior
C. exterior
D. ventral


35. Coelomic cavity may be lined with— containing chlorogogen cells ?

A. prothelium
B. mesothelium
C. metathelium
D. both a and b


36. which of the following is not a class of Platyhelminthes ?

A. Turbellaria
B. Trematoda
C. Cestoda
D. Round worms


37. There is incredible power of regenration in ?

A. Aschelminthes
B. Platyhelminthes
C. protozoans
D. Annelids


38. phylum Platyhelminthes consists of classes ?

A. 5
B. 4
C. 6
D. 9


39. Sea stars are believed to share a common evolutionary history with phylum ?

A. Annelida
B. Arthropoda
C. Echinodermata
D. Chordata


40. Ampulla contract and force fluid into ?

A. Suckers
B. Podia
C. Radial canal
D. Stone canal


41: Which structures at tip of podia come into contact with substrate ?

A. Suckers
B. Ampulla
C. Rectal cacae
D. All of these


42: Podia contract by forcing water back into ?

A. Ostia
B. Suckers
C. Ampulla
D. None of these


43: Echinoderms prey on ?

A. Oysters
B. Clams
C. Sea food
D. All of these


44. Asexual reproduction in sea stars takes place by ?

A. Binary fission
B. Regeneration
C. Budding
D. Parthenogenesis


45. The endoskeleton in echinoderms is made up of ?

A. Calcareous plates
B. Mucous plates
C. Protienaceous plates
D. none of these


46. Phylum Porifera’s diversity consist of major groups ?

A. 2
B. 3
C. 4
D. 5


47. Which one of the following group of Porifera is primarly shallow water and tropical ?

A. Calcarea
B. Hexactinellida
C. Demospongia
D. none


48. The group of Porifera considered as “glass sponges” is ?

A. Calcarea
B. Hexactinellida
C. Demospongia
D. none


49. Skeletal elements of Phylum Porifera’s animals consist of ?

A. Calcium carbonate
B. Silicon dioxide
C. Mucopolysaccaride
D. a and b both


50. Main large exit found in Phylum Porifera’s members is called ?

A. Porocyte
B. Ostia
C. Osculum
D. none


51._____ provide water current by beating its flagellum ?

A. Amoebocytes
B. Choanocytes
C. Pinacocytes
D. None


52. Main chamber which is lined with choanocytes ?

A. Ascon
B. Sycon
C. Leucon
D. None


53. In the structural conditions of sponges, leucon has ?

A. One main chamber of choanocyte
B. Two chambers of choanocyte
C. Multiple layers of choanocytes chambers
D. None of these


54. In the food capturing by choanocytes, beating of flagellum creates ________ inside collar ?

A. Negative pressure.
B. Positive pressure
C. Has no effect produce inside collar
D. May be positive may be negative


55. In Phylum Porifera, beating of flagellum draws food to outside of mucus covered _____ of collar ?

A. Villi
B. Microvilli
C. Food vacuole
D. None of these


56. Food captured by Choanocytes is moved via ________ ?

A. Flagella
B. Cilia
C. both A snd B
D. None of these


57. In Porifera, Ostia is an opening through which ____________?

A. Waters enters into the sponges
B. Wather leaves the sponges
C. It is series of small openings
D. Both A and C


58. The excretory organ of annelids are ?

A. Flame cells
B. Nephrostomes
C. Nephiridia
D. None of these


59. Beard worms live deep in oceans typically near ?

A. Hydrothermal vent
B. Deep sea vent
C. None of these
D. All of these


60. Bloodworms capture prey with extremely long eversible ?

A. Pharynx
B. Larynx
C. Cirri
D. None of these


61. In Annelida, dorsal and ventral blood vessels are connected by ?

A. Heart
B. Capillary beds
C. Capillaries
D. Muscle


62. Gas exchange occurs across ?

A. Body wall
B. Appendages
C. Gills
D. All of these


63. In excretory system of Annelida, segmented nephridia is ?

A. Single
B. Paired
C. Many
D. None of these


64. In Annelida, free swimming larva is produced called ?

A. Madreporite
B. Bipinnaria
C. Branchiolaria
D. Trochophore


65. In Annelida, blood is pumped by ?

A. Vessels
B. Muscle contraction
C. Both a and b
D. None of these


66. phylum Platyhelminthes consists of classes ?

A. 5
B. 4
C. 6
D. 9


67. There is incredible power of regenration in ?

A. Aschelminthes
B. Platyhelminthes
C. protozoans
D. Annelids


68. which of the following PlatyhelmintheS have complex life cycles ?

A. All species
B. Parasitic species
C. both
D. None of these


69. Platyhelminthes are also known as ?

A. Round worms
B. flatworms
C. Earthworms
D. none of these


70. Some species of platyhelminthes have _ that captures food and transport it into mouth ?

A. Protusible Larynx
B. Oesophagus
C. Trachea
D. Protusiblephrynx


71._ _ have the first true excretory system ?

A .Flatworm
B. Cnidaria
C. Mollusks
D. protozoas


72. Flame cells is the characteristic property of ?

A. Cnidaria
B. Flatworm
C. Protozoan
D. Mullusks


73. Protists are mostly in Nature ?

 

A. Autotrophs
B. Heterotrophs
C. Both A and B
D. None of these


74. Free Swimming Body covered in Cilia are Called ?

A. Paramecium
B. Amoeba
C. Euglena


75. Protozoa are mostly ?

A. Prokaryotic in Nature
B. Eukaryotic in Nature
C. Both A and B
D. None of these


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