Tibetan Terriers (often called TTs) are sometimes called a large dog in a small dog's body, because they have a personality that is more like some of the larger breeds as opposed to what might be expected from their size.he Tibetan Terrier is a medium sized (averaging 14-16 inches at the shoulder, 20-24 pounds) dog whose most dramatic physical characteristic might be the long, profuse, double coat.
nonliving A virus is a submicroscopic obligatory parasitic particle that infects cells in biological organisms. Viruses are non-living particles that can only replicate when an organism reproduces the virulent RNA or DNA.
Hypothesis stating that life could arise from nonliving matter. A microscope that focuses an electron beam through a specimen, resulting in resolving power a thousandfold greater than that of a light microscope. A transmission electron microscope (TEM) is used to study the internal structure of thin sections of cells. A scanning electron microscope (SEM) is used to study the fine details of cell surfaces.