The statements given below shows some characteristics of a phylum. identify it.
(i) Tissue absent
(ii) Internal fertilisation
(iii) Development is indirect
(iv) Spongocoelate with ostia (many) and single osculum and canal system
(v) Sexes are hermaphrodite.
The statements given below shows some characteristics of a phylum. identify it.
(i) Tissue absent
(ii) Internal fertilisation
(iii) Development is indirect
(iv) Spongocoelate with ostia (many) and single osculum and canal system
(v) Sexes are hermaphrodite.
The correct option is C Porifera
The given characteristics are of the phylum 'Porifera'.
The cells of Poriferans are loosely organized.
The development is indirect and the cleavage is holoblastic.
The body comprises numerous pores known as Ostia and osculum.
The central cavity is called spongocoel or atrium which opens to the outside through the osculum.
Most sponges are hermaphrodites (function as both sexes simultaneously), although sponges have no gonads (reproductive organs).
In Sponges, fertilization is internal and development is indirect having a larval stage which is morphologically distinct from the adult.
The correct option is C Porifera
The given characteristics are of the phylum 'Porifera'.
The cells of Poriferans are loosely organized.
The development is indirect and the cleavage is holoblastic.
The body comprises numerous pores known as Ostia and osculum.
The central cavity is called spongocoel or atrium which opens to the outside through the osculum.
Most sponges are hermaphrodites (function as both sexes simultaneously), although sponges have no gonads (reproductive organs).
In Sponges, fertilization is internal and development is indirect having a larval stage which is morphologically distinct from the adult.
