Reasons why natural selection cannot anticipate environmental changes
Question
According to the passage, natural selection cannot anticipate future environments on the earth as
- 1.
species not fully prepared to face the environmental changes that await them will face extinction
- 2.
all the existing species would get extinct as their genomes will not withstand biological mishaps
- 3.
inability of the genome to withstand environmental changes would result in extinction
- 4.
extinction of species is a common feature
Options
1, 2 and 3
2, 3 and 4
1, 3 and 4
1, 2 and 4
Explanation
Evaluate each statement against the text:
Statement 1 is supported: "An outcome of this is the extinction of those species which cannot overcome environmental adversity." Statement 2 uses the extreme absolute "all the existing species would get extinct", which is factually false and contradicts the text's assertion that only those ill-equipped fail to survive. Statement 3 is supported: "failure to survive... can be attributed to the genomes which are unable to withstand..." Statement 4 is supported: "extinction of species has been a major feature."
Statements 1, 3, and 4 are valid deductions.
Answer: (c).
Question details
Year
2022
Paper
CSAT
Question
Q31
Section
Reading Comprehension
Sub-topic
Science / Evolution passage
Type
Statement-based
Difficulty
Medium
Source hint
Passage 1 (Natural selection and evolution) - Q31
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