Cognitive development is Jean Piaget's theory. Through a series of stages, Piaget proposed four stages of cognitive development: the sensorimotor, preoperational, concrete operational and formal operational period.
The versatility of Bifidobacterium longum as a lactic acid microorganism is reflected in its capacity to resist under harsh conditions such as stomach acid, bile, pH fluctuations, and gastrointestinal passage.
Mycobacterium. A genus of aerobic, nonmotile bacteria (family Mycobacteriaceae) containing gram-positive, acid-fast, slender, straight or slightly curved rods; slender filaments occasionally occur, but branched forms rarely are produced.pecies include M. africanum, M. avium intracellulare, M. bovis, M. chelonei, M. fortuitum, M. gastri, M. gordonae, M. kansasii, M. marinum, M. scrofulaceum, M. terrae, M. triviale, M. smegmatis, and M. xenopi.