"B-b"

# Babinski Reflex :On stroking the sole of the foot, the great toe bends upwards instead of downwards (dorsal instead of plantar flexion). Present in disease or injury to the upper motor neurone. Babies who have not walked react in the same way, but normal flexion develops later. # Baby : An infant or young child who is not yet walking. # Bacillus : A genus of aerobic, spore bearing Gram positive bacteria; Example : B. Antrachis (the causative agent of ANTHRAX. # Bacterium : A general name given to a minute vegetable organism which may live on organic matter. There are many varieties, only some of which are pathogenic to man, animals and plants. Each Bacterium consists of a single cell and given favourable conditions, multiplies by subdivision. Bacteria are classified according to their shape.