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Psychology is considered to be a science.

Extracellular matrix (ECM) is composed of ground substance and _______________.

Cholesterol and steroid synthesis occurs in the:

Amino acids differ only in their:  

Attraction between two charged (+/-) particles constitutes:

_____ glands have ducts.

Using a Na+-gradient (which is produced by an ATP-powered Na+ pump) to drive movement of other solutes (e.g., glucose) constitutes:

Which of the following is a sugar:

Connective tissues are comprised primarily of:

These are both: