Which of the following are stinging cells on tentacles?

A. Pinacocytes

B. Nematocysts

C. Flame cells

D. Choanocytes

ANSWER

B. Nematocysts.
Nematocysts or cnidocysts represent the common feature of all cnidarians. They are large organelles produced from the Golgi apparatus as a secretory product within a specialized cell, the nematocyte or cnidocyte.
Nematocysts are predominantly used for prey capture and defense, but also for locomotion.
Cnidoblasts are used for anchorage, defense, and to capture the prey

Radial symmetry exhibited by

Zoology

A. Platyhelminthes B. Nematoda C. Molluscs D. Cnidaria ANSWERD. Cnidaria.Phylum Coelenterata (or Cnidaria) – , radially…

Which is the copper containing respiratory pigment present in Mollusca?

Zoology

A. Hemosiderin B. Hemocyanin C. Anthocyanins D. Leghemoglobin ANSWERB. Hemocyanin.Hemocyanin is a respiratory pigment that…

All of the following in arthropods helps for excretion EXCEPT-

Zoology

A. Malpighian tubules B. Green glands C. Coxal glands D. Flame cells ANSWERD. Flame cells.Arthropods…

Which is the balancing organ in arthropods ?

Zoology

A. Pinacocytes B. Solenocytes C. Statocysts D. Colloblasts ANSWERC. Statocysts

Statocysts in arthropods function as

Zoology

A. Excretion B. Digestion C. Balancing organ D. Reproduction ANSWERC. Balancing organ

Statocysts are found in

Zoology

A. Platyhelminthes B. Nematoda C. Arthropoda D. Annelida ANSWERC. Arthropoda. Statocysts are spherical balancing organs found…

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Which of the following are stinging cells on tentacles?

Radial symmetry exhibited by

Which is the copper containing respiratory pigment present in Mollusca?

All of the following in arthropods helps for excretion EXCEPT-

Which is the balancing organ in arthropods ?

Statocysts in arthropods function as

Statocysts are found in

Botany

Zoology

Which cells in sponges are called ‘collar cells’?

Which is a Schizocoelomate ?

Organ level of organisation appears for the first time in the Phylum

Which is a flagellated collar cell that create and maintain water flow through the sponge?

Tissue level of organisation starts from

The term species was coined by

What is the basic unit of classification in biodiversity?

Which cell is totipotent cell in sponges and capable of transformation into any other type of cell?

Which cells in sponges secrete polysaccharides that also form part of the mesohyl?

Which cells in sponges are equivalent of an immune system?

Which cells secrete the mineralized spicules?

Cells that form closable inlet valves in sponges to control channels –