Mycobacterium tuberculosis: Lung Tuberculosis-causing bacteria (Microscope image) Introduction Many types of bacteria that settle in the human body can cause disease. These bacteria can penetrate the human body in a variety of ways (body cuts, insect bites, contaminated food, air and water).

Plant Hormones: Multiple Functions in Plants What They Are Plant hormones, also known as phytohormones, are organic compounds produced by plants and play key roles in their growth and development. These hormones are present in small quantities and are produced in plant tissues.

Physiology: study of the functions of living beings What is Physiology Physiology is a biological science that studies the functions (physical, organic, biochemical) of living beings. The word is of Greek origin, where physis means nature and logos means study or knowledge. Physiology brings together important principles of physics, chemistry and mathematics, giving meaning to the interactions of the basic elements of a living being with the environment.

Biology Documentary Nominations Biology Documentary Nominations: Parasites and Human Health Themes: Parasites and Human Diseases Distributor: Log on Ecology Themes: Ecology and Environment Distributor: Charles Darwin's Log On Life and Work Themes: Biography, Theory of Evolution of Species Distributor: Log On Principles and Foundations of Genetics Themes: Distributor Genetics: SBJ Productions Zoology and the Primary Species of the Animal Kingdom Themes: Zoology, Animals Distributor: SBJ Productions Atlas of the Human Body Themes: Distributor Anatomy: True Tech Inside human body Themes: Distributor Anatomy: Europe Movies The Battle for Life Themes: stages of human gestation Distributor: Free Sound The human planet Themes: various aspects of human evolution Distributor: Log On Science - Ecology and Environment - Air Themes: Air Distributor : SBJ Produções Science - Ecology & Environment - Living Themes: Ar Distribui dora: SBJ Productions Science - Ecology and Environment - Energy Themes: Air Publisher: SBJ Productions Planet Earth - Animals and Their Houses Themes: Animal Life, Habitat Distributor: Log On Lethal Animals Themes: Dangerous Animals Distributor: Focus FIlmes penguins Themes: penguin life Director: Jacquet, Luc Publisher: Video Movies

Lemongrass: example of monocotyledonea What they are These are plants (angiosperms) that have only one cotyledon in the seed. Cotyledons are the initial leaves of plant embryos. Main characteristics of monocotyledons: - Presence of only one cotyledon in the seed. - Invaginating leaves with presence of parallel ribs.

Sabin: Polio Vaccine Development Introduction - Who was Albert Bruce Sabin was born on August 26, 1906 in the Polish city of Bialystok. In the early 1920s, he immigrated with his family, seeking better living conditions, to the United States. He was an important researcher and physician, and was well known for developing the polio vaccine.