Unlike protozoa, sponges are multicellular. However, unlike higher metazoans, the cells that make up the sponge are not organized into tissues. Therefore, the sponge lacks true tissue and organs. Moreover, they have no body symmetry. However, the sponge has special cells that perform certain functions.
Does the sponge have real organs?
Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells. Unlike other animals, they lack real tissues and organs. Some of them are radially symmetric, but most are asymmetric.
Does the sponge have a true digestive system?
Sponge Physiological Process The sponge, which lacks a true digestive system, relies on the intracellular digestive process of the choanocyte for energy intake. The limitation of this type of digestion is that the food particles must be smaller than the individual cells.
Is the sponge considered a real animal?
One of the sponges and the primitive multicellular aquatic animals that make up the sponge phylum. Approximately 5,000 species are listed and inhabit all oceans that attach to surfaces above 8,500 meters (29,000 feet) deep from the intertidal zone.
Which of the following is correct for sponges?
& gt;The correct thing about sponges is: c) The sponge has no real tissue. Sponge is a very primitive organism made of cells, but those cells.
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