Food webs such as the one shown were first used in 1927 by the animal ecologist Charles Elton. The food web below represents the feeding
relationships among organisms in an Alaskan ecosystem. An
environmental change that removed which of these organisms from the
ecosystem would cause the most instability in the ecosystem? *

answer; synapse; i believe this is correct,plz check first good luck;

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.