Porifera sponge diagram. See full list on britannica.

Porifera sponge diagram. This topic is from class 11 chapter Animal Kingdom in Biology. Introduction Sponges (phylum Porifera) are an exclusively aquatic and, with a few exceptions (Vacelet and Boury-Esnault 1995), a filter-feeding group of animals. The cumulative effect of the flagella from all choanocytes aids the movement of water through the sponge: drawing water into the sponge through the numerous ostia, into the spaces lined by choanocytes, and eventually out through the osculum (or osculi). Aug 3, 2023 · Porifera are all aquatic, mostly marine except one family Spongillidae which lives in freshwater. The vast majority of sponges are organized in a more complex way, the leucon condition, with folds upon folds, resulting in a series of flagellated chambers connected by canals. External Form menu selections retrieve underwater or laboratory photos of whole sponges, and refer to external morphological characters. Mineral Skeleton (Spicules) selections bring up microphotographs and drawings of skeletal spicules and refer to their characteristics. Sponges belong to the kingdom animalia and the phylum porifera, though at one time they were thought to be plants. The diagram above shows the basic structure of a sponge, with key features like the spongocoel (central cavity), ostia (pores), osculum (exit opening), and specialized cells. Let’s dive deep into the world of sponges! 🌊 Start studying Porifera--sponges. The body shape is vase or cylinder-like, asymmetrical, or radially symmetrical. A simple folding of the wall yields a sponge body with sycon organization. Spongin is the flexible material that makes up the body wall of the sponge, while spicules Jul 2, 2025 · Phylum Porifera includes simple, sponge-like animals that live mostly in water and have porous bodies for filtering food and oxygen. They are sessile and sedentary and grow like plants. See full list on britannica. com The hypothesis has been made that coral reef sponges facilitate the transfer of coral-derived organic matter to their associated detritivores via the production of sponge detritus, as shown in the diagram. In this worksheet, read about sponges, and color a sponge to illustrate your knowledge of sponge anatomy. So, here’s a super simple breakdown — straight from NCERT, with mnemonics, diagrams, and smart shortcuts you’ll love. Apr 17, 2025 · 📚 Introduction Porifera is the simplest animal phylum, but NEET loves to ask tricky questions from it. This article includes phylum Porifera class 11 definition, meaning, characteristics, classification, examples, notes and diagrams. The group consists of approximately 15,000 extant species in three distinct groups (Hooper and van Soest 2002): the glass sponges (Class Hexactinellida) the calcareous sponges (Class Calcarea) the demosponges (Class Demospongiae . Having no digestive tract, localized sensory region, or true tissues, they are little more than a cluster of cells supported by a structure of spongin and spicules. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Overview Sponges make up the simplest animal group on the planet: phylum Porifera (from the Latin porus ‘pore’ and ferre ‘to bear’). bsjlz 6ois1 e8i jlhqiamy azds eglv4d 6p2ctkh4 mhh5 s1b bxjx