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What beautiful bowl shaped animal floats near the surface of water trailing stinging tentacles?
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What are some of the characteristics of a Portuguese man of war?
Portuguese man-of-war, a floating, compound marine animal found in warm regions of all oceans. It is made up of a colony of four kinds of polyps. There is a polyp that forms the gas-filled float, 8 to 10 inches (20 to 25 cm) long, which is usually iridescent blue with a pink crest. Below the float hang the food-catching, feeding, and reproductive polyps. The food-catching polyps form tentacles that may be more than 40 feet (12 m) long, with stinging parts that paralyze or kill most fish and other prey on contact. They tentacles that have stinging cells called blastula and a nematocyst. It uses them to catch prey or protection. It paralyzes the prey and eats it in the medusa. They also have different polyps that digest the food that they eat. They also have polyps that have nitrogen in them so they can float up on surface of the sea. Also they have polyps that act like sails for the jellyfish to move. They have polyps that have stinging cells on them and they form tentacles so the can catch prey that are low in the sea in their tentacles. The Portuguese man of war's predators are the leather back turtle, the logger head turtle, also there is a nudbrae that latches on to the Portuguese mar of war and feeds on it and the toxin gets absorbed by the slug and uses it as self defense, and the pacific crab. The turtles have thick skin so the stinging cells can't get to them. Also there are some small fish that feed on the polyps of the Portuguese man of war. And there is a blanket octopus that tears the tentacles off and uses that as defensive materials to protect them selves. If a prey touches or gets caught in the tentacles the prey would get paralyzed or maybe it could kill the prey. And the Portuguese man of war eats it. The nematocyst sting toxin secreted from the tentacles of the dactylozooids, a mixture of enzymes, is a neurotoxin about seventy-five percent as powerful as cobra venom. The toxins contain a complex mixture of polypeptides and proteins including catecholamines, histamine, hyaluronidase, fibolysins, kinins, phospholipases and various hemolytic, cardio toxic and dermatonecrotic toxins. The life of the Portuguese man of war starts by the planula larvae which is reproduced by the adult. Then it becomes a polyp and turns into a strobila. Then it turns to a eyhra. Then it becomes a adult jellyfish. The Portuguese man of war reproduces sexually and asexually. It reproduces sexually intrusively by having the jellyfishes to exchange sperm for fertilizing the eggs in the jellyfish. It also reproduces asexually extusively by releasing eggs into the water and letting other jellyfish release sperm into the water to fertilize the eggs. A Portuguese man of war doesn't have a brain, respiratory system. They absorb oxygen through diffusion, since they are about 95% water in composition as opposed to our 70%, so they need no respiratory or circulatory systems. Jellyfish have no brain or nervous system like that of more complex lifeforms, and instead possess a loose network of nerves on their outer skin that transmit information to a simple nerve ring in the center that responds to stimuli in very simple ways.
Superior surface of foot?
The superior surface of the foot is also called the dorsal surface or the dorsum pedis.
What is the name of the respiratory surface in humans?
It is the lining of the alveoli that acts as our respiratory surface.
How does upwelling bring fish or nutrients to the surface?
how does upwelling bring fish and nutrients to the surface
What property of the structure of water allows water spiders to walk across the surface of a pond?
it is when water molecules in the water form a 'wall'.Pond skaters have legs that spread out away from their bodies, lowering the pressure exerted by their weight and not breaking the surface tension of the water
What does Portuguese man o war eat?
The Portuguese man of war kills it's prey with it's extremely long, painful, stinging tentacles. It eats small fish towards the surface of the saltwater ocean and other small saltwater animals like shrimp.
What eats Portuguese man o' war?
The Portuguese man of war kills it's prey with it's extremely long, painful, stinging tentacles. It eats small fish towards the surface of the saltwater ocean and other small saltwater animals like shrimp.
Does a cuttlefish have airholes?
Yes they have 250 air holes on inner surface of tentacles
Do cuttlefish have suction cups?
Eight of their ten arms have suckers lining the bottom surface of their tentacles. Two tentacles are stored in pouches under its eyes. When prey comes close enough, the tentacles fly out of the pouches to catch it.
What is a stinging weed?
Also called 'Stinging Nettle,' this weed is a perennial that has stinging hairs on the stems and surface of the lower leaves. It's seeds are spread by the wind and its underground stems. It grows in clumps and can form large colonies.
Do cuttlefish have 250 air holes on inner surface of tentacles?
yes they actuallly do on their arms
Was is an aileron?
It is a control surface on the wing of an aircraft. It is used to bank the aircraft on an angle in flight. It is on the trailing outer edge of each wing.
What are the body parts of a stingray?
The entire surface of the body, also the inner surface of the coelenteron can sting; however, stinging cells are located mostly on tentacles and on oral arms.
What are the two forms of cnidarians?
Cnidarians come in two forms: a medusa has tentacles that hang down and polyps usually live attached to a surface.
What is cnidoblast?
several capsules occur on the body surface. each is produced by special cell called cnidoblast
Why are the arms of a parabolic dune following and not leading the bulk as they do at a Barchan-Dune?
Parabolic dunes have trailing arms because the arms are usually 'held back' by surface vegetation. The vegetation acts to limit sediment transport by wind action and to consolidate the surface sands.
What is the function of cnidarian tentacles?
They use their tentacles to sting their prey. ------- In addition to envenomating prey, cnidarians use their tentacles to bring their food towards their oral cavity and to provide defense against predators. Sessile cnidarians can also use their tentacles for locomotion, using sticky nematocysts for adhering to the substrate and then pulling themselves along a surface by retraction of those tentacles. Certain box jellyfish species (notably, Carybdea sivickisi) use their tentacles during courtship behavior- the males use them to hold onto a mate, and the females use them to ingest the presented sperm package (spermatophore) into their cavities in proximity to their eggs. Some small jellies also use their tentacles to hold onto eel grass for reasons that are yet to be fully understood, but probably are related to camouflage.
