What are the Three types of grassland in the United States

tropical grassland,steppe grassland, temperate grassland

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

loss of sensation to pressure and touch

the dorsal column–medial lemniscus pathway (dcml) (also known as the posterior column-medial lemniscus pathway (pcml)) is a sensory pathway of the central nervous system that conveys sensations of fine touch, vibration, two-point discrimination, and proprioception (position) from the skin and joints.