Porifera MCQs | Porifera Short Questions and Answers

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Questions
41 Which Is A Collared Cell
A Silicoblasts
B Scleroblasts
C Silicoblasts
D Spongioblasts

Answer: Silicoblasts
42 Ingestion In Sponge Is By
A Choanocytes
B Trophocytes
C Pinacocytes
D Archaeocytes

Answer: Choanocytes
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43 Sponges Show
A Protoplasmic Level Of Organisation
B Tissue Level Of Organisation
C Cellular Level Of Organisation
D Do Not Require Them

Answer: Cellular Level Of Organisation
44 Euplectella Belongs To Class
A Hexactinellida
B Homocoela-Calcarea
C Heterocoela-Calcarea
D Demospongiae

Answer: Hexactinellida
45 Pinacocytes Are
A Mesodermal
B Endodermal
C Ectodermal
D Interstitial Cells

Answer: Ectodermal
46 Common Larva Of A Sponge Is
A Parenchymula
B Tadpole
C Planula
D Placula

Answer: Parenchymula
47 Sponges Are
A Sessile
B Pelagic
C Plankton
D Nekton

Answer: Sessile
48 Gemmules Take Part In
A Asexual Reproduction
B Sexual Reproduction
C Development Of Water Current In Sponges
D Digestion

Answer: Asexual Reproduction
49 Euplectella Is A Symbol Of Union Till Death Because
A A Young Shrimp Pair Gets Entrapped In The Sponge
B Its Basal Root Tuft And Upper Part Symbolise The Two Sexes
C It Contains A Sieve Plate In The Osculum Region
D It Symbolises The Goddess Of Marriage

Answer: A Young Shrimp Pair Gets Entrapped In The Sponge
50 Sponges Are Characterised By
A Presence Of Tissues But Absence Of Organs
B Absence Of Organs And Diseases
C Presence Of Both Tissues And Organs But Absence Of Organ System
D Absence Of Cells

Answer: Absence Of Organs And Diseases
51 Sponges Lack
A Appendages
B Body Plan
C Cellular Differentiation
D Sexual Reproduction

Answer: Appendages
52 Pinacoderm Is
A Outer Body Layer Of Sponges
B Name Of Body Wall Of Sponges
C Inner Body Layer
D Middle Layer Of Body Wall

Answer: Outer Body Layer Of Sponges
53 Wandering Cells Of Sponges Are Called
A Amoebocytes
B Pinacocytes
C Porocytes
D Choanocytes

Answer: Amoebocytes
54 In Sponges, Various Types Of Body Cells Obtain Nourishment From
A Trophocytes
B Choanocytes
C Thesocytes
D Both B And C

Answer: Both B And C
55 Sponges Are
A Sedentary
B Planktonic
C Nectonic
D Neuston

Answer: Sedentary
56 In Sponges The Germ Cells Are
A Uniflagellate Sperm And Nonflagellate Egg
B Flagellate
C Multiflagellate Sperm And Nonflagellate Egg
D Nonflagellate

Answer: Uniflagellate Sperm And Nonflagellate Egg
57 Demospongiae Have
A Tetraxon Spicules And Spongin Fibres
B Monoaxon Spicules
C Triaxon Spicules
D All The Above

Answer: Monoaxon Spicules
58 Animal Of Phylum Porifera Are Characterised By
A Canal System
B Diploblastic Organisation
C Coelom
D None of the above

Answer: Canal System
59 Most Of The Sponges Are
A Colonial
B Solitary
C Cold Water Inhabitants
D Fresh Water Forms

Answer: Colonial
60 Bath Sponge Belongs To The Class
A Desmospongia
B Porifera
C Hexactinellida
D Calcarea

Answer: Desmospongia

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