Which of the following cell of sponges contains flagella
1.Nematocyst
2.Spongioblast
3.Amoebocyte
4.Choanocytes
Which of the following is true about the given organism?
1.It is a medusa form of Aurelia
2.It is Fresh water sponge
3.Central canal system is present in it
4.It’s mouth is formed first
Which of the following is true about the following organism?
1.Radial symmetry is present
2.Fertilisation is external
3.multicellular animal
4.coelomate organism
Which of the following is not true about the given organism?
1.Bilateral symmetry is present
2.Hermaphrodite
3.Indirect development
4.Acoelomate organism
The name of the phylum Cnidaria is derived from the
1.Nematocysts
2.Cnidoblasts
3.Cnidocytes
4.Both 2 and 3
Which of the following cell is present on the tentacles and body of the Cnidarians
1.Nematocysts
2.Choanocytes
3.Cnidocytes
4.Both 2 and 3
Stinging capsule present in Cnidarians is called
1.Nematocysts
2.Choanocytes
3.Cnidocytes
4.Both 2 and 3
Cnidocytes are used for
1.Anchorage
2.Defence
3.Capturing of prey
4.All of these
Which of the following is not true about Cnidarians
1.Radial symmetry
2.Diploblastic
3.Tissue level of organisation
4.Deutrostomes
The distinctive feature of Cnidarians is
1.Cnidoblast
2.Polyp and Medusa form
3.Gastro-vascular cavity
4.Hypostome