Which of the following observations helped Darwin shape his concept of descent with modification?
A) Species diversity declines farther from the equator.
B) Fewer species live on islands than on the nearest continents.
C) Birds live on islands located farther from the mainland than the birds' maximum nonstop flight distance.
D) South American temperate plants are more similar to the tropical plants of South America than to the temperate plants of Europe.
E) Earthquakes reshape life by causing mass extinctions.

Question

Quizplus · Accepted Answer

Darwin observed that species in similar climates (like temperate regions) were more similar to each other if they were geographically closer, suggesting that species evolve from common ancestors and adapt to their environments.

Which of the Following Observations Helped Darwin Shape His Concept