According to Sheldon, all embryos must develop ______ distinct tissue layers, which are still acknowledged by perinatal medical researchers.

a. four
b. five
c. three
d. six


c. three

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Which of the following officially, and irrevocably, ended the institution of slavery in every state of the United States?

A. Gettysburg Address B. Emancipation Proclamation C. Fourteenth Amendment D. Thirteenth Amendment

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The Agricultural Revolution roughly 14,000 years ago is one example of three major transformations driven by

What will be an ideal response?

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DRC programs seem to fare well as a ______ program for prisoners, especially when compared with the outcomes of prisoners who are freed under no supervision and parolees under traditional parole

a. treatment b. reentry c. punitive d. diversionary

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The fundamental privileges and freedoms enjoyed by U.S. citizens are commonly referred to as _____________________

Fill in the blank(s) with correct word

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