(a) Simplest sponges ,
(b) Commonly known as bath sponge. Most common method of reproduction in sponges is, 12. This discussion on Common bath sponge is a)Sycon b)Spongilla c)Euspongia d)EuplectellaCorrect answer is option 'C'. Hippospongia (Fig. 27.4) is a brightly coloured,small low encrusting sponge with the lobulated upper surface. to Trigonometry, Complex Halichondria is popularly known as Crumb of bread sponge. Sponges: Characters and Classification | Animal kingdom, Structure of Euspongia (With Diagram) | Zoology, Sponges: Characters, Classification and Types | Zoology. Spongin fibres are entirely absent. The body is cylindrical and curved with thin walls, the upper end is closed by an oscular sieve formed of fused spicules, and the lower end has anchoring siliceous root spicules, inside is a spongocoel. The sponge is soft and brownish yellow in colour. Pheronema (Fig. 27.7) has flattened elongated tubular growths opening by high delicate oscula. Common bath sponge is 7.2k + 1.6k + 1.6k + लिखित उत्तर. Skeleton entirely absent. Skeleton comprises spongin fibres in which siliceous spicules are embedded. Can you explain this answer? Share Your PDF File Reproduction both asexual and sexual. The colony of Spongilla is profusely branched exhibiting various shades of green colour due to the presence of Zoochlorellae, a green alga in the tissues. Asexual reproduction by gemmules. from other animals by the presence of, d) located between the outer and The bundle of spicules also forms an axis as columella which passes through the body, the spicules are bound together by siliceous cement. Spongilla 9. Uttarakhand CM announces free WI-FI service in all Govt. 27.3) has a cup or bowl- shaped thick-walled body with lateral pleural prostals and long twisted root tufts. It is light grey to black in color. There are many large and small oscula. The basal part of the sponge is filled with eggs and embryos and the peripheral part encloses the canal system. 27.1) is commonly known as Venus’ flower basket. to Euclids Geometry, Areas 27.10) is the common bath sponge. Common name- bath sponge (Spongia officinalis) 4. Euplectella is found attached by its siliceous roots to the bottom of deep sea near the Philippine Is., its curved structure is an adaptation to the slow, constant water current at great depth of the sea. Regularly growing in symbiotic relationship with Hyalonema are several polyps of a Zoanthid Palythoa or of Epizoanthus, an anemone. The sponge is orange or red, yellowish brown in colour, is found in deep waters from Rhode Island to Labrador. Hippospongia. Zoology, Invertebrate Zoology, Sponges, Types. Bath sponge skeleton. Canal system leuconoid type. Chalina (Fig. The incurrent canals are situated in depressions between the lobes of the body. Oscarella 5. colleges and universities in the state. and Differentiability. E. mollisima is the most valuable bath sponge, it is cup-shaped, light yellow, and found near Asia Minor. 3 glass sponge or Regadrella. Encircling the cylinder are projecting ledges of spicules, with many openings or parietal gaps in the meshwork of spicules, they connect with the spongocoel but are not a part of the canal system. Pheronema 4. Sexual reproduction occurs when the Bath Sponge produces sperm and releases it into the water. inner layers, 10. Disclaimer Copyright, Share Your Knowledge Hippospongia carries small crustaceans and worms in its large cavities. The body has a large number of small projections called conuli, which are due to strands of spongin fibres. Check NEET state quota counselling schedule & important updates here. 27.6) is somewhat spherical in shape having a characteristic tuberculate surface. E. officinalis is found in the Mediterranean, West Indies and Australia up to a depth of 180 metres. Euspongia- It also called shower wipe, is an industrially utilized ocean sponge. Meet 6-year-old Ahmedabad boy World’s youngest computer programmer. What are the general characters of bryophytes? Euspongia (Fig. Sexes are separate but male colonies are rare. Description. Gemmules are helpful in. Welcome to BiologyDiscussion! Spongilla Euspongia Leucosolenia Sycon Answer : B संबंधित वीडियो. b) sexual reproduction. JEE Main 2021 preparation tips, strategies & marking scheme. and Inverse Proportions, Areas What is seed dormancy? is done on EduRev Study Group by NEET Students. Each branch or finger-like structure is perforated by numerous oscula. The "skeleton" of a living bath sponge is purplish in color. Skeleton is made of four and six- rayed siliceous spicules bound together by siliceous cement so that they form a network of great complexity, but the canal system is of the simple sycon type. 27.8) is probably the best known of freshwater sponges. Boring is begun by the larva. 27.2) is commonly known as glass-rope sponge, is marine and is about 38 cm long. Why does plant cell possess large sized vacuole? Our mission is to provide an online platform to help students to share notes in Biology. The canal system is rhagon type. 27.5), the boring sponge is found inhabiting the interior of coral skeletons, mollusc shells and other calcareous objects. Try it now. Tethya (Fig. Spongia officinalis- Spongia officinalis (Euspongia), also called shower wipe, is an economically utilized ocean wipe. Skeleton consists of spongin fibres without spicules forming an irregular network. Explain the factors which cause dormancy. Share Your Word File Name the types of nitrogenous bases present in the RNA. Content Guidelines 2. of Parallelograms and Triangles, Introduction Distribution and Habitat. 27.10) is the common bath sponge. Flagellated chambers lie radially in the sponge wall. Join the 2 Crores+ Student community now! Body is rounded and large, it is of light brown colour. Oscarella (Fig. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. It occurs in shallow and deep waters of sea and worldwide in distribution. The only fresh water species of sponges is, a) Sea anemone resembling a flower basket. Skeleton consists of radiating bundles of monaxon spicules and asters. The Questions and Answers of Common bath sponge is a)Sycon b)Spongilla c)Euspongia d)EuplectellaCorrect answer is option 'C'. There is no epidermis of pinacocytes. Colleges. Euspongia is regarded as a colony, but the individuals of the colony are unrecognisable. Euplectella aspergillum (Fig. Asexual by regeneration and budding. The body wall consists of very thin dermal membrane provided with dermal pores and several oscula.
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