consort to the University of California , nematode worm are the 2d most abundant metal money on earth . These free - living species are institute as parasites in plants , animate being , insects and bird or any living organism from which they can derive nutrition . fare under phylum Nemata in taxonomy , these creatures feed primarily on bacteria and microscopical fungi . They are biologically very round-eyed . With canonical digestive and nervous systems , parasitic roundworm are the most complete yet rudimentary multicellular animals . They are found in nearly all climates and soil type .
Living Dead
Nematodes have the power to shut down all their metabolic activities . When the conditions are unfavorable , parasitic nematodes go into a kind of hibernation , where for all practical design they are numb . But once the conditions change , they are able to revive themselves and resume their normal living cycles . This makes them very tough pests to handle if they infect a craw . They can remain indefinitely torpid and wo n’t succumb to normal gadfly mastery measures .
Dangerous for Humans
Not all roundworm are harmful , but some of them can cause diseases in Bos taurus as well as in human existence . Diseases like elephantiasis are make by nematodes . craw or yield infect by nematode worm , if take by humans , can top to severe GI problem and achesas well as diarrhea , abdominal aches and stern dysentery . nematode are not easily seeable and thus are very easily transmitted through not only verbatim consumption but also through eating the meat of an infected animal .
Plant Parasites
Nematodes are endo - parasites in plants . They can spend their total life living in plant tissues like roots , fruit and stems . They have needles , stings or maulers with which they secure themselves to the plant tissue and suck nutrition from the plant . This adversely affects the plant production . Plants like corn often suffer from nematode infection . In a tuber or radical - based craw , like sweet potatoes or carrots , nematode action can be disastrous for the plant , and consumption of the garden truck infect by nematodes can cause health problem in humans too .
Size Diversity
Nematodes exhibit an astounding range in size . While most nematodes are small and valuate a few millimeters , these creatures can also be microscopic or can measure up to several meters long . The longest jazz nematode is the Placentonema gigantisma , which infect the placenta of the sperm whale and can be up to 13 metre in length . Most parasitic species are microscopic .
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