1. are physical barriers that
prevent microorganisms from gaining en-
try or expel microorganisms before they
multiply. (Mechanical defense mechanisms,
Chemical defense mechanisms, Electrical defense
mechanisms)

When creating a plan for the use of space in an early childhood educational setting, it is best to plan for clear passageways throughout the classroom. design only small, cozy spaces so that children feel safe. keep check-in and check-out areas outside the room. thoroughly conceal the toilet and hand-washing area for privacy.

What can you do to be a financially responsible consumer.

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.