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    Safe drinking water is a privilege in North America.  Though essential to good health, it is often taken for granted.  It is delivered to our homes or offices for our enjoyment with little thought given to where it originated or how it got there.  We expect water to come forth as required.  We expect water to both look and taste good.  And we

    • Glenn Kageyama

      Image of the waterborne parasite Giardia from a scanning electron microscope; changes to Federal law regarding water quality and public health have driven the construction of the new Croton water filtration plant. - Image - Water Technology

    • Jacquelyn Schrotel

      MOST COMMON: Giardia lamblia- rapid weight loss, diarrhea that smells like death & sewage, FOUL gas, bloating, & dehydration --they are most common in dogs cats and beavers. often mistaken for IBS

    • Machi Mannu

      Giardia cell, SEM. (Photo credit: Wikipedia) Intestinal parasites don´t just occur in the tropics, but also in temperate regions of the world. Intestinal parasites include microscopic organisms as well as worms large enough to be seen with the naked eye.  Parasites are usually transmitted through food and water contamination. Giardia cell, SEM...

    • James Dillan

      What Harmful Organisms Live in Your Body? - Parasites are similar to fleas or ticks on a dog, but inside your body. The risk of infection is widespread. It is estimated that more than 90% of all Americans are infected with some type of harmful organism.

    • Ivette V

      Giardia lamblia. Scanning electron micrograph (SEM) of Giardia lamblia. This one-celled microscopic flagellate protozoan is an intestinal parasite in humans causing giardiasis (lambliasis), an intestinal disorder

    • fatma alashmawi

      Giardia lamblia is a flagellated protozoan parasite that colonizes and reproduces in the small intestine, causing giardiasis. The parasite reproduces via binary fission. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes.

    • Sunny Sports

      The effects of water-borne parasites can range from mild discomfort to life-threatening -- be sure to always purify natural water sources before drinking!

    • Carrie @ Natural View

      Giardia lamblia SEM 8698 lores.jpg

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    Villi in the small intestine increase the surface area of the gut, which helps in the absorption of food. Look closely and you'll see some food stuck in one of the crevices.

    Real Image of T4 bacteriophage (a virus) via electron microscope.

    This scanning electron microscope image is from a cactus plant.

    Photograph of a white blood cell attacking a pathogen. Taken with a scanning electron microscope - Imgur

    A scanning electron microscope image of spider silk glands making a thread.

    The eye of a needle, threaded with red cotton. SEM image.

    An electron microscope catches the immune system blooming into action. A white blood cell (red) wraps itself around a mycobacterium tuberculosis, the causative agent of most cases of tuberculosis. Phagocyte, as a white blood cell is known as, comes from the Greek word phagein (to eat), and that's what the cell does, rendering the infectious cell benign.

    One of the ten finalists in the 2012 New Scientist Eureka Prize for Science Photography. This image, 'Another Day in the Life of Arabidopsis', shows a small, six-day-old seedling of Arabidopsis thaliana under a scanning electron microscope and captures the essence of seed germination, the tiny and delicate beginnings of a plant. The image has been artificially coloured to resemble the natural colours of the living seedling. Photo: Mark Talbot

    Being tiny doesn't stop viruses, bacteria, certain insects and other microscopic critters from causing all sorts of misery. But under the microscope, we can see them for what they truly are. This image, made using a scanning electron microscope, shows the free-swimming protozoan Giardia, which causes diarrhea and other symptoms when it infects the small intestine, often as a result of contaminated drinking water.

    Electron Microscope image of DNA

    Cryptosporidium protozoa

    Paramecium - electron micrograph

    Plants seen in the Scanning Electron Microscope. Lichen.