B lymphocytes
Antibodies are produced by specialized white blood cells called B cells (B lymphocytes)
A disturbance would be things like lava, flows, newly formed sand dunes, or rocks left from a retreating glacier. These are disturbances because Primary Successions happen in lifeless areas, which soil is incapable of sustaining life.
Answer:
Helix formation would be favored at high pH.
Explanation: