GATE Exam > GATE Questions > Two islands, P and Q, are similar in habitat ...
Start Learning for Free
Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?
(i) P is closer to the mainland than Q
(ii) P is further away from the mainland than Q
(iii) P has higher speciation rates than Q
(iv) P has lower speciation rates than Q
(ii) P is further away from the mainland than Q
(iii) P has higher speciation rates than Q
(iv) P has lower speciation rates than Q
- a)i and iv
- b)i and iii
- c)ii and iii
- d)ii and iv
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Two islands, P and Q, are similar in habitat and other features. They ...
Because P is the subset of Q by this options I
and most important thing is that q is less than the P areas as well
and most important thing is that q is less than the P areas as well
Free Test
FREE
| Start Free Test |
Community Answer
Two islands, P and Q, are similar in habitat and other features. They ...
Understanding the Observation
The observation that two islands, P and Q, have the same number of species despite their size difference can be explained by various factors. Let's analyze the correct option (b) and why it effectively explains the phenomenon.
Factors Supporting Option B
- i) P is closer to the mainland than Q
- Increased Species Immigration: Being closer to the mainland allows for easier access for species to migrate to Island P. This can lead to a higher rate of species colonization, maintaining species diversity on a smaller island.
- ii) P is further away from the mainland than Q
- Isolation and Speciation: If Island P is further away from the mainland, it may experience limited immigration. However, if it has higher speciation rates, it can compensate for the lack of new species arriving. This indicates that Island P has developed unique species that are not found in Island Q.
Reasons for Incorrect Options
- iii) P has higher speciation rates than Q
- While this statement is true, it doesn't provide an independent explanation without considering the isolation factor. If both islands have the same number of species, higher speciation on P alone cannot account for the similarity in species numbers.
- iv) P has lower speciation rates than Q
- This contradicts the premise that P can maintain the same species count as Q. If P has lower speciation rates, it would struggle to keep up in species diversity, especially as it is smaller in size.
Conclusion
Thus, option b) (i and ii) captures the dynamics of species immigration and isolation effectively, which can independently explain why two islands of different sizes have the same number of species.
The observation that two islands, P and Q, have the same number of species despite their size difference can be explained by various factors. Let's analyze the correct option (b) and why it effectively explains the phenomenon.
Factors Supporting Option B
- i) P is closer to the mainland than Q
- Increased Species Immigration: Being closer to the mainland allows for easier access for species to migrate to Island P. This can lead to a higher rate of species colonization, maintaining species diversity on a smaller island.
- ii) P is further away from the mainland than Q
- Isolation and Speciation: If Island P is further away from the mainland, it may experience limited immigration. However, if it has higher speciation rates, it can compensate for the lack of new species arriving. This indicates that Island P has developed unique species that are not found in Island Q.
Reasons for Incorrect Options
- iii) P has higher speciation rates than Q
- While this statement is true, it doesn't provide an independent explanation without considering the isolation factor. If both islands have the same number of species, higher speciation on P alone cannot account for the similarity in species numbers.
- iv) P has lower speciation rates than Q
- This contradicts the premise that P can maintain the same species count as Q. If P has lower speciation rates, it would struggle to keep up in species diversity, especially as it is smaller in size.
Conclusion
Thus, option b) (i and ii) captures the dynamics of species immigration and isolation effectively, which can independently explain why two islands of different sizes have the same number of species.
|
Explore Courses for GATE exam
|
|
Similar GATE Doubts
Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer?
Question Description
Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer?.
Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.
Here you can find the meaning of Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in sizerespectively, but have the same number of species. Which of the following statements canindependently explain this observation?(i) P is closer to the mainland than Q(ii) P is further away from the mainland than Q(iii) P has higher speciation rates than Q(iv) P has lower speciation rates than Qa)i and ivb)i and iiic)ii and iiid)ii and ivCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice GATE tests.
|
|
Explore Courses for GATE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup