Which best describes the purpose of connective tissue?
a. forms a barrier to protect your inside body parts from the outside world
b. provides structure and support in the body
c. sends signals throughout the body
d. extends and contracts to give you movement

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?