Question

The event of species extinction differs from the earlier extinction and the first five extinctions because the main difference is that this extinction...

• A. Happens every year
• B. Primarily affects plants
• C. Does not include human activities
• D. Primarily happens on islands

Hint:

Islands often experience unique extinction events due to isolation, which makes species more susceptible to changes and threats.

Answer 1

The Correct Option is D

Step 1: Understanding the Question.
This question highlights the unique feature of the current extinction event compared to past mass extinctions, specifically how it differs in terms of location and affected species.

Step 2: Analyzing the Options.
(A) Happens every year: This is not correct, as mass extinctions are not frequent events occurring every year.
(B) Primarily affects plants: This is an incorrect assumption. Mass extinctions affect both plants and animals.
(C) Does not include human activities: This is incorrect as human activities, such as habitat destruction, contribute to current extinction rates.
(D) Primarily happens on islands: Correct — The ongoing extinction event is primarily affecting isolated populations on islands.

Step 3: Conclusion.
The correct answer is (D) Primarily happens on islands, as island ecosystems are more vulnerable to extinction.