Phylum Porifera MCQs Quiz Online PDF Download
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Phylum practice test MCQ: skeleton of sponges are made up of fibrous 'protein' called with choices spongin, fibrin, fibrinogen and fibrous protein with online tutorial questions for online placement tests with past papers' important questions. Free study guide is for online learning phylum porifera quiz with MCQs to practice test questions with answers.
MCQs on Phylum Porifera Quiz PDF Download
MCQ: Skeleton of sponges are made up of fibrous 'protein' called
- Fibrous protein
MCQ: Collar cells of 'sponges' are known as
MCQ: In sponges, exchange of water and diffusion is carried out by process of
- Active transport
- Passive transport
MCQ: Thin flat cell that covers outer surface of 'sponges' are called
MCQ: Needle like spikes present on skeleton of 'sponges' are called
- Stinging cells
- Defensive cells