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Free download in PDF Porifera Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
A Common Chamber In Sponges Is
[A]
Spongoceol
[B]
Incurrent Canal
[C]
Radial Canal
[D]
Excurrent Canals
(22)
A Dried Piece Of Sponge Is Composed Of
[A]
Spongin Fibres
[B]
Cellulose Fibres
[C]
Silk Fibres
[D]
Elastic Fibres
(23)
Many Sponges May Be Bigger Than Fishes, Yet They Do Not Have Respiratory Organs Because They
[A]
Have Porous Body
[B]
Are Sedentary
[C]
Respire Anaerobically
[D]
Do Not Require Them
(24)
Which Is Correct In Sponges
[A]
Single Exit Innumerable Mouths
[B]
Single Mouth Innumerable Exits
[C]
A True Coelom
[D]
Radial Symmetry
Answer: Single Exit Innumerable Mouths
(25)
Difference Between Sponges And Other Metozoa Is
[A]
Sponges Possess Cellular Level Of Organisation
[B]
Sponges Do Not Contain Blood
[C]
Sponges Do Not Have Cell Division
[D]
Sponges Do Not Have Division Of Labour
Answer: Sponges Possess Cellular Level Of Organisation
(26)
Mesohyl Layer Of Sponges Is
[A]
Gelatinous
[B]
Nonliving
[C]
Noncellular
[D]
All The Above
(27)
Choanocytes Are
[A]
Biflagellate
[B]
Tetraflagellate
[C]
Uniflagellate
[D]
Multiflagellate
(28)
Mesogloea Of Sponges Consists Of
[A]
Spicules
[B]
Fibres
[C]
Gelatinous Matrix
[D]
All The Above
(29)
Myocytes Of Sponges Are Modified
[A]
Pinacocytes
[B]
Choanocytes
[C]
Amoebocytes
[D]
Gland Cells
(30)
Myocytes Of Sponges Show
[A]
Secretion Of Fibres
[B]
Nervous Excitation
[C]
Contractibility
[D]
All The Above
31
Germ Cells Of Sponges Are Formed By
[A]
Archaeocytes
[B]
Pinacocytes
[C]
Collencytes
[D]
Choanocytes
32
A Sponge Can Be Distinguished From Other Animals By The Presence Of
[A]
Choanocytes
[B]
Hollow Body
[C]
Coelenteron
[D]
Dermal Papillae
33
Larva Of Sponge Is Known As
[A]
Amphiblastula Larva
[B]
Planula Larva
[C]
Trochophore Larva
[D]
Glochidium Larva
Answer: Amphiblastula Larva
34
Gemmules Are Helpful In
[A]
Survival In Drought
[B]
Digestion
[C]
Sexual Reproduction
[D]
Secretion Of Spicules
Answer: Survival In Drought
35
Sycon Belong To The Class
[A]
Hexactinellida
[B]
Desmospongia
[C]
Porifera
[D]
Calcarea
36
The Only Fresh Water Species Of Sponges Is
[A]
Spongilla
[B]
Scypha
[C]
Euspongia
[D]
Oscarella
37
Common Bath Sponge Is
[A]
Euspongia
[B]
Euplectella
[C]
Spongilla
[D]
Syon
38
The Study Of Sponges Is Called
[A]
Parazoology
[B]
Protozoology
[C]
Nematology
[D]
None of the above
39
Boring Sponge Is
[A]
Cliona
[B]
Hyalonema
[C]
Chalina
[D]
Spongilla
40
Flagellate Larva Of Sponges Is
[A]
Planaria
[B]
Planula
[C]
Amphiblastula
[D]
none of the above
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