One hypothesis suggests that the cambrian explosion was caused by the rise of predator-prey relationships. This hypothesis is best supported by an increased incidence of which fossil traces?

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

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.