File:Hartmannella vermiformis.jpg
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English: Under a moderately-high magnification of 5011X, this 2002 scanning electron micrograph (SEM) revealed some of the ultrastructural morphology exhibited by small grouping of Hartmannella vermiformis amoebae trophozoites.
The trophozoite stage of an amoeba’s lifecycle is its vegetative phase, spent feeding, moving about, and reproducing. This free-living protozoan moves in response to chemical signals in its environment by extending pseudopodia, or “false feet”, a number of which are seen in this image. The other major stage of an amoeba’s life cycle is a "cyst", shown in PHIL 11166. Under harsh conditions like drought, accumulated toxins in the amoeba's environment can reduce its metabolic requirements, whereupon, the protozoa produces a protective coat, and goes dormant to await better fortunes. |
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| Author | CDC\ Janice Haney Carr | ||
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PD-USGov-HHS-CDC English: None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image. |
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This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 01:25, 4 August 2009 | | 2,835 × 1,927 (540 KB) | Raeky (talk | contribs) | {{Information |Description={{en|1='''Under a moderately-high magnification of 5011X, this 2002 scanning electron micrograph (SEM) revealed some of the ultrastructural morphology exhibited by small grouping of Hartmannella vermiformis amoebae trophozoites. |
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