how do sponges carry out essientail fuctions?
410297
Within a sponge, there is an intriguing body structure. While the sponge functions as a unified organism, each cell is a division of its own mini-organism. Essentially, a sponge is a combination of billions of cells that function together. Within the body of the sponge, several processes occur which are vital to its welfare. Most importantly, sponges conduct the processes of respiration, digestion, protection, development, and reproduction. \n\nAll of these processes are generated by the consistent filtration of the water encompassing it. Through an intricate system of incurrent and afferent ducts, it processes food, oxygen, and other useful materials. The exterior layer of skin is covered in pinacocytes, which open the afferent ducts. In addition, the afferent ducts allow water to be transferred through the porocytes. The functions of the afferent ducts are regulated by the myocytes, muscular cells that permit them to open and close. After this the water travels through the incurrent ducts. \n\nWithin the system of incurrent ducts, water is processed for useful materials. The interior layer of tissue forces the water through the ostioles into chambers lined with choanae and flagellates. Eventually, water is directed towards the atrial cavity. After the water is processed through the atrial cavity and removed of a sufficient amount of oxygen, it is released through the osculum. The osculum is a relatively maximized opening in the body of the sponge. At this point in filtration, waste water will be ejected.
9150
Actually, removing the sponges would cause the sea level to drop (the sponges do take up volume).  Perhaps you could personally remove them with all the spare time you have on your hands.
122721
If you removed all the sponges, you would remove some of the mass in the ocean displacing water. So in fact, the ocean would not be deeper, but shallower. \n\nI will leave it to the reader to estimate the reduced depth after sponge removal.
773120
That's a hard one,but I think its Sponge.
322015
they pump that drilling mud down the inside of the drill shaft and the mud pushes the drill shavings up the hole outside the shaft. the rig colects the mud and filters the cutings out. they then recycle the mud so it can be reused
1176172
The magic sponge moved on to bigger and better things.\nHe got his own television show.\nHis name is Bob.\nMaybe you've seen his show.  If you haven't, ask any kid.  He'll tell you about it.
503794
They take excess moisture out of the air.  They pull in the air from one end, take out the wwater which collects in a tub (which needs to be emptied), and lets out drier air.
433066
Mr Newton.  For every action there is an equal and opposite reaction.\n\nThe action is pushing air down.  The reaction pushes the hovercraft up.\n\nAnd some Bernoulli, whereby increased pressure on one side of an object creates lift.  The air pushed down, and retained by the skirt, causes a pressure differential between the air under the hovercraft and the air above it.  This creates lift
305733
Sponges are able to reproduce sexually or asexually. Most sponges are monoecious. Sperm are formed from choanocytes; and oocytes derive from choanocytes in some sponges, and archaeocytes in others. Sperm are released into open water. Some sponges have oviparous fertilization where sperm and eggs meet in open water. In other species sperm are taken into the bodies of other sponges and fertilized inside; this is known as viviparous fertilization. The free-swimming larvae, known as parenchymula, serve as one of the main forms of dispersal for this largely sessile phylum. Asexual reproduction of sponges is through budding, where a small piece of sponge falls off of the main sponge and grows into a new one. Many freshwater sponges form small structures known as gemmules, which function as overwintering devices. These are similar to a bacterium's endospore. Gemmules are made up of amoebocytes surrounded by a layer of spicules and can survive conditions that would kill adult sponges. When the environment becomes less hostile, the gemmule resumes growing.
201286
thru gills ..they absorb oxygen frm the water n release the water thru gills
255756
Someone is trying to get you going!!!  \n\nFirst of all, if you wash everything well and keep all things clean, rinse and properly dried, there is no fear.\n\nNo, you cannot get sick from the sponge washing your dishes... But I trust that you are RINSING your dishes well.. and not leaving the soap on...
10705
The same depth.\nHere's something to think about:\nTake a dry sponge and a bucket of water.  Put the sponge in the water.  How much did the water level change after the sponge absorbed the water?\nNot much, huh?\nAlso, all the organic molecules the sponge is made out of it got from the ocean and the other living things in the ocean, so there's nothing added to the ocean as a system there.
787015
You should be doing your own homework instead of relying on others.  How are you going to succeed in life if all you do in sponge off of people.
650548
They are dehydrated, and there is no water in the sponge to make it squishy.
365759
Sponges are Porifera; hydra are Cniderians.\n\nPorifera have body pores (ostia), canals and chambers that serve for passage of water. They also have choanocytes (collar cells) specialized cells that create water currents, as they are filter feeders.  \n\nCnidarians have stinging cells organelles called nematocytes or cnidocytes. They also have a nerve net with symmettrical and asymmetrical synapses.  They have a muscular system.
983330
It acts as a conducter and also helps the probe slide all around.\nRachel
35680
They work by circulating hot air inside the oven to make cooking more uniform and faster... \n\nCheck out the sources for alink to a website that goes into more detail...