Sponges are considered the oldest animal phyla. Sponges do however have specialized cells that perform specific functions. Therefore sponges lack true tissues and organs in addition they have no body symmetry. However unlike higher metazoans the cells that make up a sponge are not organized into tissues. Unlike Protozoans the Poriferans are multicellular. They do not have arms or legs and they most definitely do not wear pants a shirt and a tie. … As water moves through the sponge food particles are trapped and engulfed by choanocytes that line the body cavity. Sponges are sessile meaning that they live their entire adult life attached to a single spot. Are sponges sessile during their entire life cycle? … The cells then push the spicules through the animals’ outer surface to raise them up and attach them together. Sponge skeletons are made of rod-like silica structures called spicules that are cemented to rocks and to each other with collagen.
Most popular uses include car care household cleaning makeup application and removal skin exfoliant for when bathing and personal care. They can be used for cleaning an array of surfaces and have better water retention than that of the artificial sponge. Sea sponges are very popular in the health and beauty field. See also what cell gives rise to all formed elements? Many of these chemicals have been isolated and studied by scientists. Some of these compounds are antibiotics that prevent pathogenic bacterial infections and others are toxins that are poisonous to predators that consume the sponge. Sponges also defend themselves by producing chemically active compounds. The amazing ways plants defend themselves – Valentin Hammoudi.How do worms protect themselves from birds?.How are sponges helpful in fighting human diseases?.How does a sponge obtain and digest food?.How do segmented worms defend themselves?.Are sponges sessile during their entire life cycle?.How do sponges protect themselves against environmental dangers?.What are two defense mechanisms in sponges to defend against predation?.How do sponges defend themselves since they Cannot move?.
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