Who classified organisms into six kingdoms?
A. Carl Woese
B. John Ray
C. Cavalier-Smith
D. Whittaker
Which cells in sponges are called ‘collar cells’?
A. Pinacocytes B. Spongocytes C. Choanocytes D. Grey cells
Organ level of organisation appears for the first time in the Phylum
A. Cnidaria B. Nematodes C. Platyhelminthes D. Sponges
Which is a flagellated collar cell that create and maintain water flow through the sponge?
A. Pinacocytes B. Spongocytes C. Rhabdiferous cells D. Choanocytes
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