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Porifera.
Hydra and other cnidarians.
Cnidarians.
Both intercellular and intracellular
Radial symmetry.
Mesogloea or mesohyl.
(i) Presence of canal system and (ii) Skeleton of spicules
(a) Leucosolenia ; (b) Euspongia.
Skeleton of sponges is made of spicules or spongin fibres. Spicules are formed of calcium carbonate and silica.
(a) Spongocoel; (b) Coelenteron.
To which phylum do sponges belong?
Porifera.
Porifera.
See lessName the organisms in which asexual reproduction takes place by budding.
Hydra and other cnidarians.
Hydra and other cnidarians.
See lessln which phylum, nervous system develops for the first time?
Cnidarians.
Cnidarians.
See lessWhat type of digestion takes place in cnidarians?
Both intercellular and intracellular
Both intercellular and intracellular
See lessWhat is the body symmetry of cnidarians or coelenterates?
Radial symmetry.
Radial symmetry.
See lessWhat is the name of gelatinous layer existing between two germ layer of Cnidaria?
Mesogloea or mesohyl.
Mesogloea or mesohyl.
See lessWrite down two unique characters of Porifera.
(i) Presence of canal system and (ii) Skeleton of spicules
(i) Presence of canal system and
See less(ii) Skeleton of spicules
Name the following: (a) Simplest sponges; (b) Commonly known as bath sponge
(a) Leucosolenia ; (b) Euspongia.
(a) Leucosolenia ; (b) Euspongia.
See lessWhat is the skeleton of sponges made up of?
Skeleton of sponges is made of spicules or spongin fibres. Spicules are formed of calcium carbonate and silica.
Skeleton of sponges is made of spicules or spongin fibres. Spicules are formed of calcium carbonate and silica.
See lessName the following: (a) Cavity present in the body of sponges. (b) Cavity present in the body of cnidarians.
(a) Spongocoel; (b) Coelenteron.
(a) Spongocoel; (b) Coelenteron.
See less