Olynthus in sponges is the name of: Phylum Porifera Mcqs December 5, 2019 BILAL KHATTAK0 A.A larval stage B.A type of cell C.A skeletal element D.A type of canal system found in the adult stage of few spongesRelated Mcqs:Ornamental sponges belong to the group of:Berlese’s theory was proposed to explain the orign of:Which of the following is a uni-nucleated cell??Sponges are characterized by the presence of:Fertilization in sponges is by cross method because:The bulb of a vapour pressure thermometer is aThe Bourdon tube of a vapour pressure thermometer is aThe corrector plate of a vapour pressure thermometer isThe pointer of a vapour pressure thermometer is aThermocouple in a temperature recorder is an example of