1 Obligate aerobes: They have absolute requirement for oxygen in order to grow. 2  Psuedomonas aeruginosa, Mycobacterium tuberculosis. 3  Anaerobes: Usually can not grow in the presence of oxygen. 4  Obligate anaerobes: These bacteria grow only under condition of high reducing intensity and for which oxygen is toxic.
Wild yam is a plant. It contains a chemical, diosgenin, which can be made in the laboratory into various steroids, such as estrogen and dehydroepiandrosterone (DHEA). The root and the bulb of the plant are used as a source of diosgenin, which is prepared as an âextract,â a liquid that contains concentrated diosgenin.
Wild yam is a plant also known as American Yam , Atlantic Yam , Barbasco , China Root , Chiense Yam , Colic Root , Devil 's Bones , DHEA Naturelle , Dioscorea , Dioscorea alata , Dioscorea batatas , Dioscorea composita , Dioscorea floribunda , Dioscorea hirticaulis , Dioscorea japonica , Dioscorea mexicana , Igname Sauvage , Igname Velue , Mexican ...