can starfish "regrow" any points of their star?
537537
Regeneration ability varies betwen species, but in general yes. Starfish can regrow any point that is lost. They can also regrow entire arms and in many species they can produce two new individuals if a section of the central disk is removed along with the arm.\n\nAnd I think everyone is well aware that starfish are not fish. Just as they know that crayfish are not fish, and that ladybirds are not birds, and that prairie dogs are not dogs, and that trouser snakes are not snakes.\n\n\n"Sea stars", sheesh.
93113
Where they live:  "There are about 1,800 living species of sea star, and they occur in all of the Earth's oceans. The greatest variety of sea stars are found in the northern Pacific Ocean."\n\nWhat they eat:  "Some species take advantage of the great endurance of their water vascular systems to force open the shells of bivalve molluscs such as clams and mussels, and inject their stomachs into the shells. Once the stomach is inserted inside the shell it digests the mollusk in place."\n  \nGood luck! :)
635836
http://en.wikipedia.org/wiki/Starfish\nDiagrams and descriptions on this page.
497775
Stars, except for the Sun, although they may be millions of miles in diameter, are very far away.  They appear as point sources even when viewed by telescopes.  The planets in our solar system, much smaller than stars, are closer and can be resolved as disks with a little bit of magnification (field binoculars, for example).\n\nSince the Earth's atmosphere is turbulent, all images viewed up through it tend to "swim."  The result of this is that sometimes a single point in object space gets mapped to two or more points in image space, and also sometimes a single point in object space does not get mapped into any point in image space.  When a star's single point in object space fails to map to at least one point in image space, the star seems to disappear temporarily.  This does not mean the star's light is lost for that moment.  It just means that it didn't get to your eye, it went somewhere else.\n\nSince planets represent several points in object space, it is highly likely that one or more points in the planet's object space get mapped to a points in image space, and the planet's image never winks out.  Each individual ray is twinkling away as badly as any star, but when all of those individual rays are viewed together, the next effect is averaged out to something considerably steadier.\n\nThe result is that stars tend to twinkle, and planets do not.  Other extended objects in space, even very far ones like nebulae, do not twinkle if they are sufficiently large that they have non-zero apparent diameter when viewed from the Earth.
446332
Depends entirely on the species of star fish.\n\nThere are about 1800 different species of sea star (Echinoderms of the Class Asteroidea) and they occur in all of the world's oceans.  Some are adapted to live in warm, coastal seas and coral reefs, others prefer deep, dark cold environs.\n\nThere are even some that are found around the super-heated waters of the deep sea hydrothermal vents also known as 'black smokers'.
544046
they are called suckers on the ends of the tube feet.  they are controlled by the water-vascular system in echinoderms, such as starfish.  \n\ngood luck with the dissection!  i did it a few weeks ago...make sure to check out the two stomachs!!
776571
Well, I guess I'm sorry I cannot answer your question, but I can tell you my opinion. (We just got done learning this In science class) I think that most of the stars began their very first cycle at the same time, therefor they would be in the same spot right now. Our sun, wich is a MSS will turn into a red giant in about 8 million years.
261853
Yes. and its actually the remains of a starfish-like thing.
685084
You can try to count the stars, but there are as many stars in the Universe as there are grains of sand on the beach.  It would be a very difficult task and take millions of lifetimes to complete.  Sorry.
560596
Yes, they can. The pacific giant octopus lives about two years and it can regenerate lost tentacles until it reaches an age of almost two years old when it loses the ability to regrow lost arms. Squid are also mollusks like octopi and cuttlefish, I believe they have that ability too.
494532
main sequence stars are at their most stable, during their main sequence lifetime when they are just burning hydrgen\n\nhope this is as specific as you need.
190893
Starfish come in various sizes. As small as 1/2 " and I have seen them as large as 10". so the weight depends on the size.  But the average 3" starfish weighs about 3 oz.
644512
starfish. a study in the great barrier reef proved that increase in the no of starfish has been causing the disintegration of the reef.
760986
One large marine snail, Charonia tritonis, feeds on the crown of thorns starfish. When these beautiful snails were overcollected for their shells, the crown of thorns multiplied rapidly and began destroying parts of the Great Barrier Reef. The snails are now protected and the situation is coming back under control.\n\nCharonia tritonis shell: http://www.hausdernatur.de/hnctrit.jpg\n\nCrown of thorns: http://ryanphotographic.com/images/JPEGS/Acanthaster%20planci%20Crown-of-thorns.jpg\n\nCharonia feeding on crown of thorns: http://members.cox.net/arniesdca/shells/charoniaOnCrownofTh.jpg\n.
793719
Stellar Fusion.  Stellar Fusion can make elements up to Iron.  After that they can't fuse anything more heavy.  In really big stars, this limit causes the star to collapse, rebound, and explode, and it is thought that this explosion is powerful enough to fuse the other heavier elements.\n\nLately though, it seems that Supernovae are no longer enough, and there are physicists looking for other methods of fusion because stellar models predict that supernovae might not produce enough elements to explain the current observed amount of heavy elements out there....\n\nSo I guess it's still up in the air.
472308
Invertebrates, the starfish can turn its stomach inside out. It will the surround its prey and digest the food.  When the food is digested the stomach will return to its normal position.\n\nNasty eh?
650511
None, they up in the Sky, best seen at night. The Earth does revolve around a Big Star that can actually be seen in the day and not night. Make for a good Word Play/Riddle question. ;-D