Which cells in sponges are called ‘collar cells’?
A. Pinacocytes B. Spongocytes C. Choanocytes D. Grey cells
Category: Zoology
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
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
Platelike cells that maintain the size and structure of the sponge
A. Pinacocytes B. Lophocytes C. Collencytes D. Choanocytes
Cellular level of organisation level of organisation is seen in
A. Sponges B. Platyhelminthes C. Protozoa D. Plasmodium
Cladogram considers the following characters
a. Physiological and Biochemicalb. Evolutionary and Phylogeneticc. Taxonimic and systematicd. None of the above
The term biodiversity was first introduced by
A. Carl Woese B. Walter Rosen C. Wilson D. Charles Darwin
A branching diagram showing the relationship between a number of species is called –
A. Phylogenetics B. Dendrogram C. Cladogram D. Taxonomy
Which is a electronic resource for digital images and description about the species which was developed by Natural History Museum, London?
A. DAISY B. INOTAXA C. SPIDA D. ALIS
Who wrote the book “Systema naturae”?
A. Carl Woese B. John Ray C. Carolus Linnaeus D. Charles Darwin
Who wrote the book “Historia Generalis Plantarum”?
A. Carl Woese B. John Ray C. Carolus Linnaeus D. Charles Darwin
Who proposed ‘Trinominal Nomenclature’?
A. Carl Woese B. Huxley and Stricklandt C. Carolus Linnaeus D. Charles Darwin
Who wrote the book ‘Origin of species’?
A. Carl Woese B. Huxley and Stricklandt C. Carolus Linnaeus D. Charles Darwin
Binomial Nomenclature which was popularised by
A. Carl Woese B. John Ray C. Carolus Linnaeus D. Whittaker
What is the offspring of a male tiger and a female lion
A. Liger B. Tigon C. Panthera leo D. Litigon
What is the offspring of a female tiger and a male lion
A. Liger B. Tigon C. Panthera leo D. Litigon