When Evolution Runs Backwards Reading Answers with Explanation

The reading section in the IELTS exam is your golden chance to get the desired scores on the test. The reading tasks evaluate the candidate's language skills with the help of 4-5 questions. The ideal time to solve all these questions must not take more than twenty minutes. Besides, here’s a sample passage when evolution runs backwards  reading answers for your reference. Further, detailed explanations for each solution are also provided below.

Solve all the questions that are given in the passage. You will be provided with 20 minutes to complete it.

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Answers to “When Evolution Runs Backwards” Reading Passage with Explanations

Let us see all the solutions with their detailed explanations for “When Evolution Runs Backwards Reading Answers”. This will give you a brief idea of how to answer the questions in the exam.

Question 1

ANSWER :C - it was modified by biologists in the early twentieth century.
Explanation :As per the information given in the third line of paragraph 3, it can be inferred that biologists modified theories. Further, in the 20th century, there was a modification done to the theory that was developed by Louis Dollo. It was in 1890 that he proposed that “evolution was irreversible”. Thus, the answer is C.

Question 2

ANSWER :D - the reason given for its unusual features.
Explanation :The 4th line of the fourth paragraph discusses some unusual traits that resurfaced in humpback whales. “At the time, explorer Roy Chapman Andrews contended that the whale had to be a relic of a land-dwelling progenitor. 'I don't see any other reason.” The reference shows that the traits are different and unusual. Hence, the answer is D.

Question 3

ANSWER :C - They could lead to the re-emergence of certain characteristics.
Explanation :As per the last line of the 5th paragraph, silent genes could reappear if somehow they are switched back on. The evolutionary changes involve the loss of genes, hence, irreversible and could be the result of being switched off. Thus, the silent genes may lead to traits that have disappeared.  
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Question 4

ANSWER :B - it suggests that Raff's theory is correct.
Explanation :According to the first line of the 7th paragraph states “As a possible example, the team pointed to the mole salamanders of Mexico and California”. As mentioned in the paragraph, the silent genes can survive up to 6-10 million years. Further, mole salamander encourages Raff’s theory. Hence, B is the right answer.

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