If the position of a body is not changing with respect to a given frame of reference, the body is said to be at rest, motionless, immobile, stationary, or to have constant (time-invariant) position. An object's motion cannot change unless it is acted upon by a force, as described.
Giardia in Humans. Giardia is a microscopic parasite responsible for the diarrhea-related illness giardiasis. Also known as Giardia intestinalis or Giardia lamblia, this organism begins to multiply within the intestines after a person becomes infected.For more details on symptoms of giardiasis, treatment options, and different ways in which humans can become infected with this parasite, click Giardia.).
Giardia is an intestinal protozoan that is found in the small intestine of infected birds, dogs, cats, humans and other mammals. The motile form, the trophozoite, attaches to the villi (fingerlike projections) of the small intestine by means of a sucking disk.vian Influenza. Influenza is caused by an enveloped RNA virus. It is an infectious disease of birds, swine, humans and other animals. Three types of Influenza viruses exist-types A, B, and C. Influenza A viruses infect birds and other animals, while B and C infect people.