do snails have a digestive system? do they excrete waste?
151884
yes snails do have a digestive system they have mouth stomach and intestins and they do excrete waste\nI would tell you all the organs in their digestive system but I don`t know their names in english
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.
989851
REWORD question...not clear....\n\n3 N wastes types in various vertebrates (from breakdown of amino acids and nucleic acids in food) Amine group taken off the amino acid and processed by liver to make urea.\n\nSince this is a zoology class question: N wastes are:\n \nUREA in mammals, us (urea becomes diluted urine plus electrolytes)\nURIC ACID crystals (guano in birds-reptiles)\nAMMONIA gas diffuses out gills in fishes\n\nkidneys filter blood of urea\nureter takes it from kidney to the bladder next\nurine stored in bladder (til urge to urinate-micturate)\nurethral sphincter muscles relax\nurine goes down urethra\nthen out urethral meatus
528053
A dolphin has a three chambered stomach, similar to an ungulate (cow or deer), pointing further to its evolution from a terrestrial ancestor. Since dolphins do not chew their food, the mastication of their meal is taken care of in their first or fore stomach. The majority of digestion is processed in the main stomach or second chamber. The last section of their stomach, the pyloric stomach, takes care of the remainder of their digestion prior to the contents emptying into the intestinal region.
438512
No, clams do not have feelings.  Their anatomy is on of the simplest.  Mollusks typically filter feed in a sessile environment.  They do not have faces or anything similar to that.  Inside the shell is just a mussel.  There are specific parts, such as a visceral mass.  But nothing too complex.
781501
Snails certainly do, I'm not sure about the others.
407914
The excretory system is responsible for removing waste materials from the body. The primary organ for excretion is the kidney which releases waste in the form of urine. Another organ of excretion is the skin which removes waste from the body in the form of sweat. Another organ of excretion is the lung. The lung is responsible for removing Carbon dioxide and water vapor. And the last member of the said system is the large intestine. The large intestine is responsible for removing undigested food from the body. The process of doing so is called elimination rather than excretion.
274864
Wow.  Talk about asking a monolithic question.  Do all Europeans and Africans eat snails?
423162
Rupali there are multitude of animals having gills to respire.Gills as a respiratory organs-Arthropods-Prawns,Shrimp,Mosquito at larval stage. All amphibians and Fish -some stage of life.All mammals on some stage of life.As in humans embryo.Practically all animals have gills as respiratory organs from non chordates Arthropod to Mammals.
237038
The earthworm has a body cavity through which the intestine passes with a front part that is modified to form special structures. The muscular throat sucks food into the food storage organ and it has a gizzard (a muscular organ in which food is ground into smaller pieces) that will grind food. They have an intestine (a region where chemical digestion and absorption occur). The intestine is tube-shaped and runs the entire length of the worm. It has a very tiny brain that is connected to a nerve cord that lies under the intestine. This comprises the nervous system of the earthworm.
181007
A snails shell is very thin and is not for protection from predators but rather to conserve its body fluids the sun is a snails worst enemy and the rain its best friend. They come out in the rain to forage for food and to move to new locations with the possibility of contacting a mate or more suitable living quarters.
1032129
Yes, about 40 times their body weight per day for fresh water fish. Water is constantly absorbed through the gills (by Osmosis) and has to be removed by the kidneys and then disposed of by urination
217075
A mollusks is an invertabrate that lives in the sea,\nThats all I know I would know more but I left my science book at hom. Im in 5th gr.
201123
frogs have a cloaca, a single reservoir for both urine and feces.  Fortunately in humans these are divided so we have one opening for urine and another for feces.
170937
A lot, actually. The kidney and the small and large intestines are the most well-known ones. But your skin actually does it's share of excreting waste from your body too. And so do your lungs. Carbon dioxide is a waste product after all.
941320
Though there are kinds of snail which are carnivorous, the giant snails in Barbados are not. It has been reported that those large snails are destroying crops. Being an African giant snails, they are macrophytophagous herbivore meaning it eats a wide range of plant material, fruit and vegetables. Sometimes they eat sand, very small stones and even concrete as calcium source for its shell. They are as big as the thumb and being a snail, they move slow thus it would be easy to step on them or get away  from them just in case they will attack human though nothing has been reported of any human attack based on the fact that they are herbivores and does the plants attack at night.♥
1141073
Common Salt (Sodium Chloride) is what's known as a drying agent. This means that it will absorb water and many other liquids. Because smails ( and slugs) are composed mainly of water, a small amount of salt can completely dry them out.\n\nHowever, humans are mainly composed of water as well, so how come we don't dry ou with salt as well? The difference is that snails are covered a selectively permeable membrane, which lets through small molecules (like water), whereas we have a very thick skin which doesn't let through nearly the same amount of water as it does with snails and slugs.