The sponge lacks true tissue, has no body symmetry, and is stemless. Types are categorized based on the presence and composition of spicules. 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. What are the main differences between sponge polyfera and cnidarians? Sponge Cnidaria 1. Animals are asymmetric. 1. Animals are radially symmetrical. 2. The waterway system is well developed. 2. There is no waterway system. 3. They indicate the presence of choanocytes. 3. They indicate the presence of Knido Blast. December 18, 2021
biocyclopedia.com Изображение: biocyclopedia.com 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. Click to see the full answer.
Does the sponge have true tissue?
Does the sponge have true tissue? 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.
How do sponges resemble and differ from other animals?
Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells. Unlike other animals, they lack true tissues and organs.
What is the difference between Polyfera and Sponge?
Phylum Porifera is a multicellular organism with pores and channels in the body, and the water that circulates them consists of a jelly-like mesohyl that contracts between two thin layers of cells. The sponge has unspecialized cells that can change to other types and often move between the major cell layers
The function of the sponge's immune system is What is it?
"Immune" system. When invaded, it produces chemicals that stop the movement of other cells in the affected area, preventing intruders from using the sponge's internal transport system. If the invasion continues, the gray cells concentrate in that area and release toxins that kill all cells in that area.
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