Differentiate between phylum porifera and colenterata
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Porifera: These organisms contain numerous pores or holes in the body.
Coelenterata: These organisms contain a body cavity, referred to as coelenteron, which is composed of a single opening.
Porifera: Mesuhyl is found in between the two cell layers.
Coelenterata: Mesoglea is found in between the two cell layers.
Porifera: They possess an exoskeleton.
Coelenterata: They do not possess an exoskeleton.
Porifera: They exhibit a cellular level organization.
Coelenterata: They exhibit a tissue level organization.
Porifera: The characteristic canal system circulate water, food and oxygen throughout the body.
Coelenterata: The circulation of water, food and oxygen is occurred through the coelenteron.
Porifera: They are non-motile, mostly marine and found attached to rocks.
Coelenterata: They are either live in colonies (Corals) or have a solitary life span (Hydra). They exhibit some sort of locomotion.
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- Porifera is also referred as sponge.
- Multicellular animals
- Thier body is asymmetrical.
- They are generally marine.
- Cellular level of organization.
- They have a water transport or a canal system.
- Water enters through minute pores called Ostia into a centrosome know as spongocoel, and released through osculum.
- Their digestion is intracellular.
- Their body is supported by a skeleton made up of spicules or spongin fibres.
- They are hermaphrodite i.e. sexes are not seperated.
- Some examples of sponges = Spongilla and Euspongia.
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- Also referred as Cnideria.
- Multicellular animals
- Radially Symmetrical animals
- Mostly Marine.
- Tissue level of organization
- They have a central gastro - vascular cavity with one opening, mouth on hypostome.
- Their digestion is Intracellular or extracellular.
- Their skeleton is composed of calcium carbonate.
- Metagenesis: Exist in both forms exhibit alternation of generation.
- Some examples of Cnideria = Gorgonia, Adamsia and Pennatula.
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