Ch 12: TASC Science: Evidence of Common Ancestry & Diversity

About This Chapter

Review scientific evidence that supports evolution and brush up on how body structures vary by species as you prepare for the TASC Science exam. Let our videos and questions help you with these topics on the test.

TASC Science: Evidence of Common Ancestry & Diversity - Chapter Summary

Refresh your knowledge of scientific evidence for evolution, and see how we account for species diversity as you plan for the TASC Science exam. Our videos can help you deal with questions on the following topics:

  • Stating how paleontology, biogeography and embryology support the theory of evolution
  • Identifying evidence for evolution in molecular biology and comparative anatomy
  • Listing ways body structures are similar and also different across species lines

Our lessons are completely online, which means you can review information for the TASC Science exam anywhere you have access to a computer or a mobile device. You can study at your own pace, taking all the time you need to review these lessons and quizzes.

Objectives of the TASC Science: Evidence of Common Ancestry & Diversity Chapter

The TASC Science exam is a high school equivalency test that assesses if you have met performance standards in the subject. Material covered in this Evidence of Common Ancestry & Diversity chapter is part of the TASC exam's testing of the core idea of biological evolution. This concept is listed as an area of high emphasis for the test and will have 2-5 questions within the life science subject area; this subject area makes up 36% of the test questions.

Most of the questions on the TASC Science exam are multiple choice; there is also one constructed-response question. The quizzes that accompany our lessons are also multiple choice, meaning they offer an excellent means of getting experience in this type of test. The quizzes also present an opportunity to see in what areas you may need additional study before taking the TASC exam.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.