How does your skin protect your internal organs from the outside world a)specialized cells fit tightly together b)specialized cells extend and contract for movement c)specialized cells secrete hormones d)specialized cells transmit signals from the brain

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.