Water vascular system is found in which phylum
A. Echinodermata
B. Porifera
C. Molluscs
D. Cnidaria
What is the basic unit of classification in biodiversity?
A. Genus B. Species C. Phylum D. Class ANSWERB. SpeciesThe basic unit for classification in…
Which cell is totipotent cell in sponges and capable of transformation into any other type of cell?
A. Archaeocytes B. Spongocytes C. Rhabdiferous cells D. Grey cells ANSWERA. Archaeocytes
Which cells in sponges secrete polysaccharides that also form part of the mesohyl?
A. Pinacocytes B. Spongocytes C. Rhabdiferous cells D. Grey cells ANSWERC. Rhabdiferous cells
Which cells in sponges are equivalent of an immune system?
A. Pinacocytes B. Spongocytes C. Rhabdiferous cells D. Grey cells ANSWERD. Grey cells
Which cells secrete the mineralized spicules?
A. Pinacocytes B. Sclerocytes C. Porocytes D. Choanocytes ANSWERB. Sclerocytes
Cells that form closable inlet valves in sponges to control channels –
A. Pinacocytes B. Myocytes C. Porocytes D. Choanocytes ANSWERC. Porocytes