‘Should we try to bring extinct species back to life’ answers with explanation-CAM 15

‘Should we try to bring extinct species back to life’ answers with explanation-CAM 15

Here are explanations of the Questions of passage named ‘Should we try to bring extinct species back to life’  CAM 15 book. The Questions that have been asked are ‘Blanks’, finding information’ and ‘finding writer names’. You will find the locations of the Reading Answers, Keywords(highlighted and
underlined) and justifications.

Questions 14-17
Reading Passage 2 has six paragraphs, A-F.
Which paragraph contains the following information?
Write the correct letter, A-F, in boxes 14-17 on your answer sheet.
NB   You may use any letter more than once.

14. a reference to how further disappearance of multiple species could be avoided.

Location and Answer: F
Explanation: The answer to this question is in the third line of the paragraph. ‘She prefers to focus the debate…how we could use it to make genetic modifications which could prevent mass extinctions in the future…’Furthermore, ‘disappearance of multiple species’ is visible as ‘mass extinction’ in the passage.
Here, ‘avoided’ and ‘prevent’ are synonyms.

15. explanation of a way of reproducing an extinct animal using the DNA of only that species.

Location and Answer: A
Explanation: The main keyword ‘DNA’ helps to locate the answer in the middle line of the paragraph. The line start, ‘Geneticist Ben Novak is lead researcher on an ambitious project who now aims to bring the bird back to
life…using cloning technology to turn DNA…’

16.  reference to a habitat which has suffered following the extinction of a species

Location and Answer: D
Explanation: The answer to this question is in the fourth line of the paragraph as ‘disappearance of this key species, ecosystems in eastern US has suffered…left forests stagnant and therefore unwelcoming plants and
animals…’Here, ‘forests’ give reference to habitat. Moreover, ‘disappearance’ and ‘extinction’ are synonyms.

17.  mention of the exact point at which a particular species became extinct

Location and Answer: A
Explanation: The main keyword is ‘particular species’ and its reference is there in the second line of the
paragraph that is ‘passenger pigeon’s’. The writer says, ‘Sadly, the passenger pigeon’s existence came to an
end on 1 September 1914, when the last living specimen died…’Here ‘1 September 1914’ is exact point.

Questions 18-22
Complete the summary below.
Choose NO MORE THAN TWO WORDS from the passage for each answer.
Write your answers in boxes 18-22 on your answer sheet.

The woolly mammoth revival project

Professor George Church and his team are trying to identify the 18…………………… which enabled mammoths to live in the tundra. The findings could help preserve the mammoth’s close relative, the endangered Asian elephant.

Location: E paragraph
Explanation: The main keyword ‘George Church’ helps to locate the answer in the third line of the paragraph.‘By pinpointing which genetic traits made it possible for mammoth to survive the icy climate of the tundra…’Here ‘pinpointing’ means ‘identifying’. Thus, this statement makes an answer very clear.
Answer: Genetic Traits

According to Church, introducing Asian elephants to the tundra would involve certain physical adaptations to minimise 19……………………

Location: E paragraph
Explanation: The main keyword ‘Asian elephants’ is there in the middle line of the paragraph. ‘Necessary adaptations would include smaller ears, thicker hairs…all for the purpose of reducing heat loss…’Here, ‘these are physical adaptations to reduce heat loss.Moreover, ‘minimise’ and ‘reduce’ are synonyms.
Answer: Heat loss

To survive in the tundra, the species would need to have the mammoth-like features of thicker hair, 20………………….. of a reduced size and more 21……………………..

Location: E paragraph
Explanation: The answer to this question is again in the same line of the paragraph as ‘Necessary adaptations
would include smaller ears, thicker hair, and extra insulating fat…’ Here, ‘smaller’ means reduced size’ and
‘more’ means ‘extra. Thus, it is easy to understand the answers.
Answer: (20) Ears (21) (Insulating) Fat

Repopulating the tundra with mammoths or Asian elephant/mammoth hybrids would also have an impact on the environment, which could help to reduce temperatures and decrease 22……………………

Location: E paragraph
Explanation: The answer to this question is in the second last line of the paragraph. The writer says, ‘The
repopulation of the tundra…useful in factor of reducing carbon emissions…grass growth would reduce temperature…’Here ‘reduce’ and ‘decrease’ are synonyms.
Answer: (Carbon) emissions

Questions 23-26
Look at the following statements (Questions 23-26) and the list of people below.
Match each statement with the correct person, A, B or C.
Write the correct letter, A, B or C, in boxes 23-26 on your answer sheet.
NB   You may use any letter more than once.

23.  Reintroducing an extinct species to its original habitat could improve the health of a particular species living there.

Location: B paragraph

Explanation: The answer to this question is in the last line of the paragraph as ‘The return of thylacines to Tasmania could help to ensure that devils are never again subjected to risks of this kind…’Here ‘return of thylacines’ means ‘reintroducing an extinct species…’
Answer: B

24.  It is important to concentrate on the causes of an animal’s extinction.

Location: F paragraph
Explanation: The answer to this question is in the third line of the paragraph. The writer says, ‘She prefers to
focus the debate on how this emerging technology could be used to understand why various species went
extinct…’ ‘Focus the debate on…’ means ‘concentrate on’. Thus the answer is C
Answer: C

25.  A species brought back from extinction could have an important beneficial impact on the vegetation of its habitat.

Location: D paragraph
Explanation: The location of the answer is in the last line of the paragraph. ‘According to Novak, a hybridised
band-tailed pigeon, with the adding nesting…re- establish that forest disturbance, thereby creating a
habitat necessary for a great many species…’Thus, this statement makes an answer very clear.
Answer: A

26.  Our current efforts at preserving biodiversity are insufficient.

Location: F paragraph
Explanation: The answer to this question is in the last line of the paragraph. ‘what we are doing today is not enough and we have to be willing to take some calculated…’Here, ‘not enough’ and ‘insufficient’ are synonyms. ‘what we our doing today’ means ‘our current efforts’

Answer: C

List of People
A     Ben Novak
B     Michael Archer
C      Beth Shapiro

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