Why is very low variation in a species risky in a changing environment?
Answer and explanation
Correct answer: Because all organisms may be affected similarly and die
Variation gives a population a range of characteristics. When the environment changes, such as through a new climate, disease, or food shortage, some existing characteristics may provide better survival than others. If individuals are nearly identical, the same environmental threat may harm most or all of them, leaving little opportunity for adaptation through selection. Hence option A is correct. B and C deny the protective role of variation, and D incorrectly describes speciation.
Frequently asked questions
What is the correct answer to this question?
Because all organisms may be affected similarly and die
Why is this the correct answer?
Variation gives a population a range of characteristics. When the environment changes, such as through a new climate, disease, or food shortage, some existing characteristics may provide better survival than others. If individuals are nearly identical, the same environmental threat may harm most or all of them, leaving little opportunity for adaptation through selection. Hence option A is correct. B and C deny the protective role of variation, and D incorrectly describes speciation.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
