Placebo pills and acupuncture have both been effective in reducing pain. the common element in both of these methods may be their ability to stimulate the

Answer

               Placebo pills and acupuncture have both been effective in reducing pain. the common element in both of these methods may be their ability to stimulate the release of endorphins.

this is the commonality between placebo pills and acupuncture.

there is no

explanation:

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: