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 not the only types of cells that function through phagocytosis. There are other important swallowing cells that make up the immune system, such as cells called granulocytes, neutrophils and dendritic cells.acrophages. The macrophage is a vital type of white blood cell. A macrophage is a kind of swallowing cell, which means it functions by literally swallowing up other particles or smaller cells.