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What are changes in DNA called?

List any two hormones that express antagonistic effects on target cells: [a] [b]  

Which of the following hormones are essential for proper growth and development? 

Anterior pituitary hormones  are ____  because the act on the secretory  action of other endocrine glands.

Which of the following glands/organs are both exocrine and endocrine in function?

For the relationship represented in the figure below, a department can have more than one employee.

Which of the following is a type of completeness constraint?

In an experimental study of the impact of exposure to criticism on self-esteem, exposure to criticism would be the ________ variable. 

The following figure shows an example of a multivalued attribute.

An amplified recording of the waves of electrical activity that sweep across the surface of the brain is called a(n)