000 species currently known and are found in almost every biome/ecosystem on Earth. You'll often find them classified based on where their roundworm habitat and, if they're parasitic, what their host organism is.
Blood is the most commonly tested part of the body, and it is truly the river of life. Learn about red and white blood cells, lymphocytes, blood tests, blood types and blood donation.
The more genetic diversity from which to draw, the more likely an organism can adapt to constraints in an environment. For bacteria, reproduction isn't a matter of meeting the right microbe and settling down; it's a process of asexual reproduction that involves DNA replication and cell ...
Like other species, we are the products of millions of years of adaptation. Now we're taking matters into our own hands.
memory t cells remain afterwards to help the immune system respond more quickly if the same organism is encountered again. suppressor t cells - suppressor t cells suppress the immune response so that it does not get out of control and destroy normal cells once the immune response is no longer...
How does an amoeba grow? What is an Amoeba?: An amoeba is a very small, single-celled organism that does not have a fixed shape. They are so small that you need a microscope to see them. They usually live in fresh water (lakes and streams), ocean water, dirt, and other animals. ...
HIF is the major responder to oxygen perturbations, and its role in aging varies depending on the organism and on inter and intra-tissue differences. Pro- or anti-aging effects of HIF are mainly mediated by its interactions with other proteins. Upon the exposure to hypoxic oxygen conditions in...
We cannot see bacteria, but almost anyone who has ever dug in the dirt has discovered another type of organism: the Annelida phylum of the animal kingdom, which includes all segmented worms, among them, the earthworm. (Incidentally, the leech family also falls within phylum ...
I understood I was one physical being, but I formed awareness of something else as well, a gestalt organism of multitudes of cells, boiled down to a fractured consciousness with two operators. I started having a tremor on one side of my body. I stopped being able to play guitar, as it...
He waxes poetic in his writing, describing the bacterial colony on his pearly whites as "a little white matter, which is as thick as if 'twere batter" [source: Dobell]. After placing the sample under a compound microscope, van Leeuwenhoek saw the microbes were moving. It's aliiiive!