Tissue level of organisation starts from
A. Cnidaria
B. Nematodes
C. Molluscs
D. Sponges
A. Cnidaria
Tissue level of organisation is exhibited in diploblastic
animals like cnidarians
The term species was coined by
A. John Ray B. Huxley and Stricklandt C. Carolus Linnaeus D. Charles Darwin
What is the basic unit of classification in biodiversity?
A. Genus B. Species C. Phylum D. Class
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
Which cells in sponges secrete polysaccharides that also form part of the mesohyl?
A. Pinacocytes B. Spongocytes C. Rhabdiferous cells D. Grey cells
Which cells in sponges are equivalent of an immune system?
A. Pinacocytes B. Spongocytes C. Rhabdiferous cells D. Grey cells
Which cells secrete the mineralized spicules?
A. Pinacocytes B. Sclerocytes C. Porocytes D. Choanocytes
Cells that form closable inlet valves in sponges to control channels –
A. Pinacocytes B. Myocytes C. Porocytes D. Choanocytes
Inner layer of sponges is formed by
A. Pinacocytes B. Lophocytes C. Collencytes D. Choanocytes
Platelike cells that maintain the size and structure of the sponge
A. Pinacocytes B. Lophocytes C. Collencytes D. Choanocytes