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The MCQ: The collar cells of the sponges are known as; "Phylum Porifera" App Download (Free) with answers: Choanocytes; Chondrocytes; Pinacocytes; Porocytes; to learn study university courses. Practice Phylum Porifera Quiz Questions, download Apple e-Book (Free Sample) for bachelor degree online in 2 years.
Phylum Porifera MCQs: Questions and Answers PDF Download
The skeleton of the sponges are made up of a fibrous protein called
- spongin
- fibrin
- fibrinogen
- fibrous protein
The collar cells of the sponges are known as
- choanocytes
- chondrocytes
- pinacocytes
- porocytes
In sponges, the exchange of water and diffusion is carried out by the process of
- osmosis
- active transport
- diffusion
- passive transport
A thin flat cell that covers the outer surface of the sponges are called
- porocytes
- chondrocytes
- pinacocytes
- leukocytes
The needle-like spikes present on the skeleton of the sponges are called
- needles
- stinging cells
- defensive cells
- spicules
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