Phylum Porifera MCQ Questions With Answers
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Do you have enough knowledge about the Phylum Porifera? If yes, then solve this Phylum Porifera quiz that consists of Multiple Choice Questions (provided with answers) and check for yourself. Basically, the Porifera are the lowest multicellular immobile organisms of the kingdom Animalia, and their bodies are full of pores. Sponges commonly constitute them. Did you know about these interesting things already? If so, take up the quiz below and check how strong your biology is. Good luck, buddy!
- 1.Which one of the following is not typical to all Poriferas?
- A.
Presence of spongin fibres
- B.
System of pores and canal
- C.
Perforated body
- D.
Choanocytes
- 2.The outer layer of a sponge is composed of what?
- A.
Pinacocytes
- B.
Choancytes
- C.
Amebocytes
- D.
Spongocoel
- 3.The Porifera have what type of symmetry?
- A.
Radial symmetry
- B.
Round symmetry
- C.
Oval symmetry
- D.
Bilateral
- 4.What is true about sponges?
- A.
One mouth, innumerable exits
- B.
Large spacious stomach
- C.
Spicules are composed of chitin
- D.
Innumerable mouths, one exit
- 5.What is true about the members of phylum Porifera?
- A.
Most of them are freshwater animals but few are marine entities.
- B.
Most of them are marine animals but few are freshwater entities.
- C.
All are freshwater animals
- D.
All are marine animals
- 6.What do sponges eat?
- A.
Detritus
- B.
Plankton
- C.
Viruses
- D.
All of the above
- 7.How do sponges reproduce?
- A.
Sexually
- B.
Asexually
- C.
Both sexually and asexually
- D.
None of the above
- 8.The hard "skeletal" structures in a sponge are called
- A.
Pinococytes
- B.
Spongin
- C.
Amebocytes
- D.
Spicules
- 9.What does the name Porifera mean?
- A.
Pore bearer
- B.
Very large hole
- C.
Multicellular
- D.
Unicellular
- 10.Choanocyte cells create a current that bring in O2 and small molecules and carry away CO2 and NH3. What part of a Coanocyte sets up a water current?
- A.
Pseudopodia
- B.
Flagellum
- C.
Spicules
- D.
An umbrella
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