This is for my biology project and I need help please!
128153
anatomy of a flower? lol duh google flower anatomy n look for images. i had a bio test on that too. good luck :)
485140
True, in fact observations that the offspring from parents of different species (where offspring are possible) are sterile was one of the key lines of evidence that lead Darwin to evolution by natural selection. ie. that once two populations of the same species become different enough, they can't interbreed thus stay separate.  \n\nIt is now established though, through many observations, that bacteria have and do pick up chunks of DNA from unrelated species of bacteria. A lot of their DNA is very mobile. I guess it depends on what you call 'kind'.
519407
Wood-boring bivalves of the family Teredinidae (commonly called shipworms) are known to harbor dense populations of gram-negative bacteria within specialized cells (bacteriocytes) in their gills. These symbionts are thought to provide enzymes, e.g., cellulase and dinitrogenase, which assist the host in utilizing wood as a primary food source. A cellulolytic, dinitrogen-fixing bacterium, Teredinibacter turnerae, has been isolated from the gill tissues of numerous teredinid bivalves and has been proposed to constitute the sole or predominant symbiont of this bivalve family. Here we demonstrate that one teredinid species, Lyrodus pedicellatus, contains at least four distinct bacterial 16S rRNA types within its gill bacteriocytes, one of which is identical to that of T. turnerae. Phylogenetic analyses indicate that the three newly detected ribotypes are derived from gamma proteobacteria that are related to but distinct (>6.5% sequence divergence) from T. turnerae. In situ hybridizations with 16S rRNA-directed probes demonstrated that the pattern of occurrence of symbiont ribotypes within bacteriocytes was predictable and specific, with some bacteriocytes containing two symbiont ribotypes. However, only two of the six possible pairwise combinations of the four ribotypes were observed to cooccur within the same host cells. The results presented here are consistent with the existence of a complex multiple symbiosis in this shipworm species.
9904
We did one on zebra mussels when I was in college.  Very easy, just created a tank that had a light source and a darkened area to determine which area they would be more attracted to.  Not sure if you have the resources to complete the resource though.
47796
There are many excellent websites. If you're studying for tomorrow, use a search engine. But be sure to check the context and sources, because in many other sites you'll find the same errors that have been copied and repeated ad nauseam.\nFor later on (when you're not in a hurry) I recommend you get yourself a "Dictionary of Biology". These small books are not expensive and come in really handy when you need a quick definition. Check the Amazon link, and focus on the updated ones.\nGood luck!
532778
This is not a pure biology question. Should be bio-chemistry.
612560
This question is best answered by a professional. If you are serious about this, please go to your doctor.
26661
Well, not to sure about your question... so I'll do my best.\n\nPositive interactions between microbes would be ones that cause a general benefit.  Like a bacteria excreting a certain amino acid that another bacteria would need in order to survive.\n\nNegative interaction would be microbes causing a detriment to each other.  Pencillium notatum generates an antibiotic naturally, causing a harmful environment to some bacteria.\n\nSymbiosis is two organisms living together in harmony.  If you refference Margulis's endosymbiont hypothesis, a large microbe, say an amoeba engulfs a photosynthetic bacteria.  The amoeba provides a safe location for the bacteria, and the bacteria provides energy to the amoeba.\n\nAntagonism... not to sure about this one.  Probably something of a parasitic interaction.
436326
You might try posting this question in the general biology area, it seems to get a bit more traffic than over here. Good luck.
50527
>>>if chloropyll is implanted in to an animal cell,would it\n>>>>> become auto trophic\n\nNo. \n\nAs Masyhur points out chlorphyll is just a tiny part of an incredibly complex system of pigments and enzymes needed to harvest light.  It is really akin to asking whether you could glue a carburettor to the side of a cardborad box and turn it into an airplane. \n\nA more plausible route would be to implant entire chlorplasts into an animal cell line. That has potential, but only for narrow range of animals.\n\nSee, the thing about chloroplasts is they need light to work. And the thing about most animals is that they have evolved pigments to stop light penetrating their cells. The two conditions are mutually exclsuive. You could implant or the chlorplasts you like into a human or cockroach and they won't do anyhting because they will be permanently in the dark.\n\nWith transparent animals like jellyfish or glass fish or similar you probably could achieve some level of autotrophic activity. \n\nIn the case of a highly active animal like a fish the payoff wouldn't be worth the cost. Chlorplasts require energy to build and maintain and active animals can't afford to laze around int he sun all day. That's why the ancestors of animals abandoned their chlorophyll in the first place (did you know that all animals are descended from photosyntheic organisms?)\n\nBut with slow moving animals like jellyfish it becomes more plausible. Some jellyfish already utilise symbiotic algae to harvest sunlight, so for those species the addition of inherent chlorpplasts could be a major boon.\n\n>>>>IS IT POSSIBLE \n\nNot with todays technology. However it is entirely possible we could have the technology to implant chlorplasts within our liftimes. I dont; quite see why we would bother, but still.....
275610
Try a search at these sites.\n\nhttp://www.scienceresearch.com/search/\n\nhttp://www.scirus.com/srsapp/
37044
5 ways? In 25 years of teaching Biology I have not come across this idea.\nHave a look at the refered site (below) where you may find what you are seeking.
279796
Check out the links below.\n\nHope those help.
643436
search it on google or yahoo or something. try to find a scientific website or one that specializes in that kind of thing.
130764
try here\nhttp://www.tpub.com/content/medical/14295/css/14295_272.htm\nor here\nhttp://abacus.bates.edu/~ganderso/biology/resources/microscopy.html
194154
Here's at least a partial bibliography!\n\nhttp://scholar.google.com/scholar?hl=en&lr=&client=safari&q=G+Bolodia&btnG=Search\n\nYou'll probably find this one especially interesting:\n\nhttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=6754370&dopt=Citation\n\n"A tribute to professor Sir Hans A. Krebs, F.R.S. (1900-1981)."\n\nYou'll probably need to access them from a library or purchase the papers to read them.  Good Luck!
467150
So funny thanks, have to tell my biology teacher that one, actually on second thoughts perhaps not the type of thing you tell your teacher. Thanks anyway xXx