What is a chemical element? a collection of bonded atoms

an element only needed in small amounts by the body

a pure chemical substance made of one type of atom

a molecule made of different types of atoms

According to ainsworth's research, in a new situation such as beginning child care placement, which children will be most likely to go to their mother for comfort when she returns? a. disorganized-disoriented b. insecure-ambivalent c. insecure-avoidant d. securely attached

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?

Foods that fill your body with sugar and fat but little else, are said to contain