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they do not sting any organism on purposely then harppons are only by touch
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How long does it take for a stinging cells animal to replace its cells once it is used and discarded?
The process of replacing stinging cells in animals, such as jellyfish or sea anemones, can vary depending on the species and the individual animal's health. In general, it can take a few days to several weeks for these animals to replenish their stinging cells after they have been used and discarded. However, some species have continuous regeneration, allowing them to replace their stinging cells more rapidly.
What are the characteristics of cnidarians?
All cnidarians have on their tentacles stinging cells called nematocytes. They have no brains or a central nervous system. Another common feature is that they all can regenerate, letting them produce asexually (without the need for another partner) and to recover from injury.
What are sea anemones stinging cells used for?
Cnidarians (Phylum Cnidaria; stinging animals, including sea anemones) use their stinging cells (properly called cnidocytes, Latin for "stinging chamber") in order to capture prey. The cnidocytes are basically a cellular-sized harpoon. When prey bumps into the cnidocyte, a trigger mechanism is activated and the harpoon rushes out. Some species add poisons for good measure. The tentacles are then able to draw food to the mouth, where it is digested and the waste expelled through the mouth (yes, they use their mouth as an anus).
What have scientists found out about jellyfish?
Jellyfish (and all cnidarians) stinging mechanism is the fastest cellular process in nature: cnidae, stinging (or sticking) filaments ejected by cnidocytes (stinging cells) receive an acceleration 40 thousands times bigger than earth gravity acceleration. Some jellyfish of the class Hydrozoa can rejuvenate to an early stadium , avoiding death. Japanese scientist proved that jellyfish contain substances that give benefit to human skin.
Why does hepatitis A virus target liver cells?
That is a very good question. But then is difficult to answer. This fallows that why so many types of viruses have special affection to some organ system. The liver has special function, as a organ of metabolism. Every organ system has some special functions, to perform. So they must be using some special enzymes in their metabolism. The viruses have very less number of genes and may be using that particular enzyme from that particular organ cells. So the particular virus is able to divide and play its role in particular types of cells in better way. So the particular virus has affection to the particular types of cells or the organ made of such cells. So this is the probable answer for the question.
What are some characteristics of cnidarians?
soft bodies and stinging cells
How do polyps and Medusa obtain food?
They use stinging cells, the stinging cells use there sharp spines and when the stinging cell touches prey the thread like structure explodes out of the cell and into the prey. Some stinging cells also release venom into the prey. When the prey becomes helpless, the polyp and medusa use there tentacles to pull the prey into there mouth
How long does it take for a stinging cells animal to replace its cells once it is used and discarded?
The process of replacing stinging cells in animals, such as jellyfish or sea anemones, can vary depending on the species and the individual animal's health. In general, it can take a few days to several weeks for these animals to replenish their stinging cells after they have been used and discarded. However, some species have continuous regeneration, allowing them to replace their stinging cells more rapidly.
Why might stinging tentacles be advantageous for slow moving predators such as some cnidarians?
All Cnidarians have tentacles with stinging cells in their tips which are used to capture and subdue prey. In fact, the phylum name "Cnidarian" literally means "stinging creature." The stinging cells are called cnidocytes and contain a structure called a nematocyst.
Some human inherited traits are transmitted by Blood cells Bone cells Sperm cells Liver cells?
Some human inherited traits are transmitted or passes from parent to offspring by sperm cells.
Does the bell on the jellyfish sting?
no only the tentacles have stinging cells Yes, in some species the bell itself contains toxin.
What are some of the traits that are unique to an individual?
finger prints . DNA , cells
How does a starfish protect itself from other animals?
Starfish are cnidarians. They have spiny skin, some have nematocysts (stinging cells) and are generally toxic.
What are some special plants?
Stem cells and leaf cells are two speacilized plant cells.
Do jellyfish have any special abilities?
Yes, jellyfish have the ability to regenerate damaged or lost body parts, and some species are bioluminescent, meaning they can produce their own light. Additionally, they have a unique predatory mechanism using stinging cells called nematocysts to capture prey.
How do you make a stinging nettle stop stinging?
You squeeze some liquid out of the stinging nettle and just rub it on to where it stings
What anamiles haves pecialized stinging cells called nematocysts?
Nematocysts are specific to the phylum Cnidaria, which contains sea anemones, corals, and jellyfish, along with some less well-known animals. Nematocysts are the most common form of cnidocytes, the general term for the stinging cells all cnidarians possess.
