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Put these levels of organization in the correct order from SMALLEST to LARGEST (1= smallest and 6 = largest).

Very large molecules in cells that play many important roles are sometimes classified as:

Select the body system(s) that are primarily responsible for communication (sending signals) and control:

Which of the following is NOT true about water:

A mechanism that functions to maintain a stable internal environment is most likely to involve:

Which of these do all lipids have in common?

In a solution, a dissolved substance is called a(n):

Anatomy and physiology are easily studied as separate subjects, because the function of the body’s organs has no dependence on their structures.

Which of these characterizes a positive feedback response in the human body?

Most of the chemical reactions of cellular respiration are anaerobic and still happen even when oxygen gas is not available.