In anticipation of the new senior center opening in December, the Plymouth Council on Aging is conducting a survey to find out the needs and interests of local seniors and their caregivers. The survey includes 28 questions about a variety of activities and programs, from bridge to bingo to yoga. Surveys have been mailed out to a random sample of households throughout town. Those who don’t receive a survey can pick up a copy at the Council on Aging or take the survey online through the town’s website, www.plymouth-ma.gov. The deadline to participate is June 22.