which protozoan has gill-like structures used for respiration?
148170
i don't think that any protozoan does because they are single celled organisms; gills require diffusion of oxygen across a membrane directly to the blood. protozoans don't have blood. because just about all protozoans are aquatic, they have some kind of system to get oxygen into their cells, but not gill-like.
572951
one word answers?\n\nwell, organs of breathing\nbirds/human/snake/frog are all lungs\nfish is gills\n\nmovment\nbirds: flight\nhuman: walk\nfish: swim\nfrog: jump\nsnake: slither
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These are single-celled (unicellular) organisms, and\nhave a well-defined membrane-bound nucleus.\nTheir modes of nutrition may be quite varied.\n• Active feeders: Some protists like Amoeba and\nParamecium (Fig. 23.5) ingest food like most\nanimals. Very often these are also referred to as\nProtozoa (protos: primitive, zoon: animal).\n• Photosynthesizers: Some protists like Euglena\n(Fig. 23.3) have chlorophyll and manufacture\ntheir own food like the plants.\n• Reproduction: Mostly asexual reproduction by\nfission and some reproduce sexually.\n• Occurrence: Many protists live freely in water\nor in soil and many are harmful parasites which\ncause diseases. Some of the protists are\npathogenic, such as Entamoeba histolytica that\ncauses dysentery and Plasmodium vivax that\ncauses malaria.
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bacteria, yeasts, and internal parasites \n\nthey dont require Oxygen
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amobea, flagellum, protozoa, Ciliates,Plasmodium
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protozoa are single cellular organisms thus they do not possess systems they have cell organells to perform different functions . in protozoa food is circulated with the help of vacuole
183391
Grasshoppers and all insects have trachea, that is, tubes formed by invagination that extend inside their bodies and carry oxygen directly to the tissues. It's a very efficient system, but doesn't work at large sizes.\n\nBirds have lungs and air sacs. Contrary to the mammalian system, the flow of air in birds lungs is continuous, and the capillaries are arranged at right angles to the airways. It's also very efficient. \nBut other than in their high efficiency, I don't see the similarities.
1012471
(A) protozoa\n(B) protozoa are eukaryotes (have membrane bound organelles), bacteria are prokaryotes (no nucleus, organelles, etc)\n(C) there are thousands of protozoans in Kingdom Protista (maybe even millions)\n(D) Protozoans are animal like because they are motile (some have flagella and/or cillia), SOME of them cannot produce their own food (via photosynthesis), so they have to get food from their environment, and some are sexually reproducing organisms.\n(E) via sexual reproduction\n\n(F) next time pay attention in class :)
448837
Giardia cells growing equally well under anaerobic and aerobic conditions.
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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.
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Protozoa are microscopic organisms, bigger than Bacteria, they have evolved and they get food from eating Bacteria.\nWhen they get big enough they split into two exact copies and thereby reproduce and grow.
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echinoderms, chordates, hemichordates, protostomes, Ecdysozoa \nLophotrochozoa \nPlatyzoa
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Gills are poor for terrestrial organisms because gills absorb dissolved oxygen in water by direct diffusion through the blood vessels in the gills.  In the air gills would not be able to diffuse oxygen through the blood vessels and much water would be lost through the gill blood vessels.  Pretty much this would cause dehydration in an organism quickly.
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the two movement structures are cilia and flagella\n\ncilia are little things on amoeba\n\nflagella are the big "TAIL LIKE" thingeys that sperm use
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Breathing, the process whereby an organism (living thing) obtains oxygen from its surroundings, to take part in internal chemical reactions which break down food to release energy. Breathing also usually gives out waste carbon dioxide as an unwanted by-product of these reactions. Breathing is one aspect of respiration, which is a term that includes both physically obtaining oxygen, and also using it in chemical pathways inside cells to release energy—the process of cellular respiration\n\nMany aquatic animals obtain oxygen dissolved in the water by muscle-powered movements, such as when the forward motion of a fish or the pumping actions of its mouth and throat force a flow of water over its gills ( See also Fish). This is underwater breathing. Tiny organisms “breathe” by the process of passive seepage or diffusion of oxygen through their body surfaces. Plants also obtain oxygen by diffusion from the air or water around them, usually into the leaves.
214723
try this search page\nhttp://uk.search.yahoo.com/search?p=Leishmania+Protist&prssweb=Search&ei=UTF-8&fr=fp-tab-web-t-1&x=wrt&meta=vc%3D
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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.