Explain The Classification Of Phylum Porifera?
admin The phylum porifera has three classes which are calcarea, hyalospongiae and demospongiae. The calcarea are also known as lime sponge. They have spicules which are calcareous in nature. They have…
2025
Explain The Cnidaria Of Non Chordate Phyla?
These are also known as the sting cells. Their stinging nature was discovered by Aristotle. They provide the link between animals and plants. Peyssonel and Trembley grouped them as animals.…
Explain The Classification Of Phylum Cnidaria?
It is classified on the basis of polypoid phase in the life cycle. They are classified as – hydrozoa, scyphozoa and anthozoa. The hydrozoa are also known as water animals.…
Explain The Hydra Of Class Hydrozoa And Phylum Cnidaria Of Non Chordates?
Hydra is a fresh water cnidaria which has lakes and ponds as their habitat. It consists of tentacles, mouth, manubrium, stomach, testes, bud, peduncle and basal disc. The tentacles help…
Explain The Physalia Of Class Hydrozoa And Phylum Cnidaria Of Non Chordates?
It is a marine cnidarian. It includes both the modes of sexual as well as asexual form of reproduction. It shows the phenomena of polymorphism and is carnivorous. It has…
Explain the aurelia of class scyphozoa and phylum cnidaria of non chordates?
Aurelia is also known as The Jelly fish. It occurs in the coast of oceans of the world. They are carnivorous and may swim actively or move passively. They have…
Explain the adamsia of class anthozoa and phylum cnidaria of non chordates?
Adamsia is also known as the sea anemone. It is mainly marine and is attached to the shell of gastropods. They are commensal organisms and show an association between sea…
Explain the astraea of class anthozoa and phylum cnidaria of non chordates?
Astraea is also known as the star coral. They are exclusively marine and have an appearance of stone. They occur in colonies which are fixed and have a spreading nature.…
Explain the pennatula of class anthozoa and phylum cnidaria of non chordates?
The pennatula is also known as sea pen or sea father. It resides in the sandy areas of warm sea. It occurs in colonies and is sedentary. It is of…
Explain the phylum Platy helminthes of non chordates?
Platy helminthes are also known as flat worms. It was the Aristotle who first mentioned it. They were placed in the same group by Gegenbaur. Most of them are parasite…