Trivia Quiz About Phylum Porifera

13 Questions | By Exclusive_13 | Updated: Mar 22, 2022 | Attempts: 135

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Questions and Answers

1.

Which of the following is not characteristic of the phylum porifera ?
- A.
  
  Porous
- B.
  
  Radial symmetry
- C.
  
  Sessile
- D.
  
  Multicellular
2.

Which environment would be most suitable for most sponges ?
- A.
  
  An aquarium
- B.
  
  Quiet protected canal
- C.
  
  Mud flat
- D.
  
  Rocky channel with constant current
3.

The cell in the sponges responsible for producing water circulation is the
- A.
  
  Spongoecoel
- B.
  
  Spicule
- C.
  
  Amoebocyte
- D.
  
  Choanocyte
4.

Members of the phylum porifera that are used commercially as sponges have a skeleton of
- A.
  
  Spicules and spongin
- B.
  
  Spongocoel
- C.
  
  Spongin only
- D.
  
  Luffa
5.

All sponges share one of these characteristics
- A.
  
  Reproduce asexually only
- B.
  
  Relatively simple but sophisticated nervous system
- C.
  
  Multicellular
- D.
  
  Nematocysts
6.

A larva is best defined as;
- A.
  
  An immature stage that is able to reproduce
- B.
  
  Early colony of cells of freshwater sponges
- C.
  
  Immature stage of an animal that looks different from the adult
- D.
  
  Sperm cell that lives free in the water.
7.

Sponges are sessile their entire life
- A.
  
  True
- B.
  
  False
8.

Sponges are eaten by many other marine animals
- A.
  
  True
- B.
  
  False
9.

Like most marine organisms, sponges have gills for gas exchange
- A.
  
  True
- B.
  
  False
10.

The name porifera means __________
11.

The two main sources of food for sponges are organic particles and _______________
12.

Two main types of asexual reproduction sponges are regeneration and ______________