Needed a Document for phylum porifera? Related: Phylum- porifera?

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Needed a Document for phylum porifera?  Related:  Phylum- porifera?

Answer

Phylum porifera means pore bearing organisms, thair animal nature was coind by Robert grant.they are redially symmetrical or asymmetrical animals. they are mostly marine some are fresh water (spongilla). this organisms contains water canal system it helps in nutrition, excretion, respiration. body enters through ostia, exits through the osculum .central body cavity is called spongicole. body Skelitan mainly made up of calcarius fibrous, silicius spiculus etc... based on body Skelitan they are devided into three classes calcaria, hexactinelleda, demosponge...ex.hylonema(glass rope sponge ,spongella (fresh water sponge), euplectella (venus flower basket).

Answer

1-It consists of primitive multicellular animals with cellular grade of organisation.
2-Free-living,mostly marine either solitary.
3-Body is asymmetrical,lacks tissue or organs but possesses large number of incurrent pores called ostia leading into a spongocoel through a system of canals.
4-Body has an endoskeleton made up of spicules, composed of calcareous or spongin fibres.
5-Digestion is intracellular and holozoic.Respiration & excretion occurs by simple diffusion. Reproduction is by asexual or sexual method.Gemmules are the mass of archaeocytes.

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Documents on reproductive health

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Phylum Porifera

Introduction:

Definition: Phylum Porifera, also known as sponges, are simple aquatic animals characterized by a porous body structure.
Body Structure: They lack true tissues and organs, with a body full of pores and channels for water flow.

Key Characteristics:

Sessile: Sponges are mostly sessile, attached to substrates in marine or freshwater environments.
Asymmetrical: They exhibit asymmetrical body shapes without any definite symmetry.
Filter Feeders: Sponges are filter feeders, drawing in water through pores to obtain nutrients.

Reproduction:

Asexual: Sponges reproduce asexually through budding or fragmentation.
Sexual: They also reproduce sexually by releasing sperm and eggs into the water for fertilization.

Ecological Importance:

Role in Ecosystem: Sponges play a crucial role in marine ecosystems by filtering water and providing habitat for other organisms.
Chemical Compounds: Some sponges produce bioactive compounds with potential pharmaceutical applications.

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