An arco book arco is a registered trademark of Thomson Learning, Inc., and is used herein under license by Peterson’s. About The Thomson Corporation and Peterson’s

50. The correct answer is (A). [–] The first statement says that any x that is a C must also be a Q. The
second statement states that there is an x that is not a Q. Since an x cannot be a C without also being
a Q, this means that the x that is not a Q cannot be a C.

---

Lesson
9
249
ARCO
■  SAT II Subject Tests
www.petersons.com/arco
BIOLOGY E/M SUBJECT TEST
The Biology E/M Subject Test consists of 80 multiple-choice questions. In terms of the overall level of
difficulty, the test is intended for students who have had a one-year introductory course in biology of the
sort that is included in a college preparatory curriculum. Although there are two versions of the Biology
Subject Test (E for ecology and M for molecular), your biology course probably prepared you adequately
to take either version. Most of the questions are similar on the two versions with only about 20 questions
making up the difference. If your course work emphasized topics such as DNA, then you might feel more
comfortable with the M version; if your course work focused on topics such as biomes and populations,
then you might feel more comfortable with the E version. Also, any additional work that you’ve done,
such as an independent report or field research, might be a basis for choosing one version over the other.
The test presented in this book will give you questions that would be appropriate to both versions.
And to make sure that you’ve had adequate practice, we’ve used 95 questions instead of just 80—though
even 80 questions is a lot to answer in an hour. Still, the number of questions asked is not great when
compared with the amount of information that is conveyed in a full-year course in biology. For this
reason, everything you learned in biology cannot be the basis for a test question. Therefore, you may
encounter some questions that test areas not emphasized in your course.
The following table summarizes the topics tested and the approximate number of questions for each: