The author suggests that melanin _____.

It can be inferred from the passage that the principle of use and disuse enables organisms to _____.

From the passage, it can be inferred that the author views body building _____.

According to the passage, men who body build_____.

What does the passage mainly discuss?

The passage implies that the audience viewed the 1900 National Automobile Show

primarily as a(n) ______

The passage is mainly about ________.

Athens is often praised as the nursery of democracy ________.

The decline of the Greek aristocracy's power in the sixth century B.C ________ .

The word “which” in the paragraph 2 refers to ______.

The word "criteria" in the first paragraph is closest in meaning to ________ .

According to the passage, we evaluate other people's social position by ________ .

Which of the following is NOT mentioned in the passage as being a result of the Deep Sea Drilling Project?

The Deep Sea Drilling Project was significant because it was ______.

Which of the following is true of the Glomar Challenger?

The author mentions “outer space” because _______.

The author refers to the ocean bottom as a “frontier” because it _______

The main idea of paragraph three is that _______.

The author implies that Paul Watson lives in ______.

The main idea of paragraph one is that __________.

When something is “controversial”, __________.

According to the reading, an environmental activist is someone who_______.

Which of the following could best serve as the title of the passage?

Many American students have to work part-time throughout their college years because ______.

American parents believe in ______.

Which of the following is NOT mentioned in the passage?