Seaside, Oregon - Stump of Spruce Giant Still Popular. America's Largest Sitka Spruce Stump: Along the Oregon coast stood America's largest Sitka spruce, a tourist stop for years among people who like to look at big trees. [09/11/2008] Complete Story...
Bacteriophages occur abundantly in the biosphere, with different virions, genomes and lifestyles. Phages are classified by the International Committee on Taxonomy of Viruses (ICTV) according to morphology and nucleic acid.acteriophages are composed of proteins that encapsulate a DNA or RNA genome, and may have relatively simple or elaborate structures. Their genomes may encode as few as four genes, and as many as hundreds of genes. Phages replicate within the bacterium following the injection of their genome into its cytoplasm.
Macrophages are a type of white blood cell which eat foreign material in the body. These cells are involved in the primary or innate immune response to a number of immune invaders, and they also make up an important part of the body's acquired immune system.acrophages help clean up bacteria and viruses in the body. Macrophages can be co-opted by HIV cells and aid the spread of the virus. A monocyte is the first stage of life for a macrophage. Macrophages are a type of white blood cell that eats foreign material in the body.