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 can be found 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.
Shape changes in molecules
Concept Care Map
SICKLE SHAPE
Symbolic language may have helped reinforce exclusive sexual relationships within social groups in l
Charles Darwin (1809–1882)
Red cells have a biconcave shape.