Barron's SAT Subject Test: Biology E/M with Online Tests features full-length practice exams in the book and online, plus in-depth review of all topics on the test. Practice tests match the actual exam in format and degree of difficulty.

This edition includes:

• Two full-length practice tests in the book with answers and explanations
• Two full-length online practice tests with answers and explanations
• One diagnostic test to help pinpoint strengths and weaknesses
• More than 350 additional practice questions with answers
• A test overview and an extensive subject review of all topics covered on the exam