What Is An Octopus's Role In A Particular Biome?
443060
Octopuses are highly efficient predators.  A small octopus might take prey such as shrimp or small crabs, but one like the Pacific giant octopus will usually eat large crabs, grabbing them with its tentacles and biting through their shell with its hard beak, but can also take larger prey, up to and including sharks 6 or 7 feet long.\n\nOne of the reasons the octopus is so skilled at camoflage though, is the fact that many other critters consider it tasty as well.  They often hide during the day, and hunt at night.  Some species are such spectacular mimics that they can fool their predators by appearing to be rocks, coral, or even a group of sea snakes.
453632
You are clearly referring to the Class Cephalopoda (squids, octopi, etc.).  It is in the Phylum Mollusca.  Most molluscs, however, have moderate to poor eyesight relative to arthropods and cephalopods (snails and clams are molluscs) so saying the Phylum Mollusca is the correct choice is a bit off.
891867
Aquatic animals.  Some ocean aquatic, some fresh-water aquatic.  That would include fish, aquatic crustaceans (e.g. crabs, lobsters), aquatic mammals (e.g., whales), squid, octopus, krill, the list goes on and on.....
281090
Rotifers   are the only I can think of  now if it were Phylum Mollusca it could be Snails, Clams, and squids\n                                 good luck
331403
I'd say pretty dang important.\nYou've got competition between plants for resources, like Nitrogen and Phosphorus.  You've got competition between birds for nesting sites.  Fish also play a role here; those that have gills better adapted to salty water can take oxygen out of the water more efficiently than fish that have gills more adapted to freshwater.
502910
I don't see any reason why a giant squid or colossal squid would pass up the opportunity to chow down on a tasty meal-sized package like a human should they encounter one.  Especially since humans don't swim very quickly or have any other defensive adaptations to protect them from giant squid.\n\nSince most cephalopods are insatiably curious and also active predators, I'd be more surprised if they didn't try to take a bite if they could.\n\nSo we're probably very lucky that these critters seem to stay in the ocean depths, and don't come up to the surface at night.
61513
i'd be a whale shark.  they're huge, so they don't get preyed upon all that much, and they don't eat people, so i'm not going to get harpooned out of fear.\n\n(though i'd rather be a giant octopus...)
810788
They've got the starring role! Bacteria, fungi, protists, all of them pick away at whatever dead matter they find, and the important thing is that they often secrete digestive enzymes onto the stuff so it breaks down. This helps them have small food particles to ingest, and it cleans up the environment to boot.
1119205
Several friends are conservation biologists.  All of them work in marine biology, studying the health and condition of plant and marine life in rivers, wetlands, and ocean shore areas.\n\nThat can be important in a place such as Florida, where years of drought caused all sort of odd marine consequences.  For example, certain kinds of grasses  chocke the shrinking rivers and lakes.  Bacteria and algae can also fill the waters, removing oxygen and killing fish.\n\nOne of my friends specializes in marine animals - and for a few years she has been keeping track of populations of fishes in various rivers and swamps.  Sometimes she takes loads of young fish, raised in hatcheries, to be release in areas where the original populations have been fished out, died off, or diminished gretly.  She spends most of the week living out of her truck, diving into the water at all hours of the day and night.  She spends more time, on averge, in a diving suit with air tanks than she does in her official work uniform of shorts, blouse and heavy boots.\n\nAlthough most of her work is done on her own, when she has to go to places where there may be snakes or alligators, or there is a risk of harm from people, she takes a colleague along.\n\nThis is but one kind of conservation bilogist.  There are people who work with plains grasses and animals, forests, birds, and more.  It's a fascinating and vigorous life, full of hard work, and is not paid very well.  Oh, and there are conservation biologists who work in laboratories and offices, too.  Not all of those jobs are traipsing the outdoors!
375174
What is a Biome?\n\nA biome is a large geographical area of distinctive plant and animal groups, which are adapted to that particular environment. The climate and geography of a region determines what type of biome can exist in that region. Major biomes include deserts, forests, grasslands, tundra, and several types of aquatic environments. Each biome consists of many ecosystems whose communities have adapted to the small differences in climate and the environment inside the biome.\n\nAll living things are closely related to their environment. Any change in one part of an environment, like an increase or decrease of a species of animal or plant, causes a ripple effect of change in through other parts of the environment. \n\nThe earth includes a huge variety of living things, from complex plants and animals to very simple, one-celled organisms. But large or small, simple or complex, no organism lives alone. Each depends in some way on other living and nonliving things in its surroundings.
995191
They're critters that permanently attach themselves to something and live out their lives there, like many sea creatures- usually they are motile as larvae and then settle on an object as an adult. Very few are sessile their entire lifespan but many many spend their adulthood that way.\n\nExamples- barnacles, sponges, corals\n\nWhen applied to plants (I assumed you meant animals, but just in case... ) it refers to leaves or stems that grow directly from the stem without a stalk.
540636
That is a great question! I hope this helps you:\n\nhttp://www.aresearchguide.com/biomes.html
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.
794621
I believe, that you are looking for amoeba.\nAmoeba's are from the kingdom: Zooplankton,  which has animal like characteristics. The Amoeba, in particular, belongs to the phylum: sarcodina which have characteristics such as having a coinceboid shape (no shape), and being able to flow by extending it's cell membrane to form false feet (pseudopod).\n\nBut, there are still several others that can be classified in this category: Paramecium cordatum (from the phylum: ciliophora), Trypanosoma gambiensis (from the phylum: mastigophora), and Plasmodium vivox (from the phylum: sporozoa)\nAs you see, there is more then one choice in this matter.\n\nHope this helps!
98279
Molluscs include over 160,000 species, with about 128,000 of those species still iiving. The answerers who have never heard of a mollusc may be surprised to learn that almost any sea shell they have ever encountered is a mollusc, and that they likely eat molluscs from time to time as clams, oysters, mussels, abalone, scallops, escargot, and conch are all molluscs. Octopus and squid are also (very tasty) molluscs from the Class Cephalopoda.\n\nA typical example of a gastropod (P. Mollusca) is a cone shaped spiral shell of a snail. They live both in salt water, fresh water and on land, within all latitudes and down to about 3000 meters ocean depth.\n\nA Bivalve example would be a clam. Most are bottom dwellers, some bore into rock and wood, and they live in both fresh and salt water. Most inhabit shallow waters.\n\nAn example of a Cephalopod would be a Nautiloid. These attractive shell creatures swim in the ocean (in a fashion) typically in deep waters nearby shallower areas, and they typically feed in the shallow at night and retreat to depths during the day. Octopi and squid are other examples which show intelligence and have eyesight.
17469
Soil invertebrates play important roles in soil communities. Some directly consume detritus, others consume detritivores, whereas others are higher-level carnivores that can indirectly control decomposition by their effects on lower levels of the food web. The classic study of detrital food webs was conducted by Gist and Crossley (1975), showing which invertebrate groups are detritivores and which are carnivorous. This reference is somewhat hard to find; Smith and Smith (2001, p. 496) has a good description of the major findings of that study.\n\n\nVisit the link below for all the info.
589808
A museum in Britain recently got a hold of a fairly well preserved one about 28 feet long.  I believe larger ones have been found, and based on (spikes?  sucker marks? beaks of eaten squid?) measured on sperm whales, truly humongous ones are out there.  \n\nA Japanese team got several photographs of a live one, a major first. The National Geo article linked to below has more history on giant squid observations.\n\nThey are hard to find because they live very deep and the oceans are large to boot.  Something like that is going to need a large hunting area so there won't be a huge concentration of them.