A.Calcareous spicules only
B.Silicious spicules
C.Spongin fibres
D.All of these
Related Mcqs:
- What is left after a bath sponge disintigrates and dries are:
- Sponges have skeleton of:
- Which of these is true for sponges:
- Ornamental sponges belong to the group of:
- Sperms released in water are carried to the mesenchyme in sponges by__________??
- The skeleton of the sponges is in the form of variously shaped needle like structures called___________??
- Neural control of heart beat is done by which of the following nerves:
- Right fasciculum of bundle of His is:
- Some of microtubules of spindle attaching to centromeres of chromosomes are called:
- Some microtubules in spindle which remain attached to spindle and also to the poles are called:
