Who observed that within a region species richness increased with increasing the area explored, but this increase is only up to a limit?
A. Charles Darwin
B. Alexander von Humboldt
C. Rudolf Virchow
D. Louis Pasteur
Answer:B
Who observed that within a region species richness increased with increasing the area explored, but this increase is only up to a limit?
A. Charles Darwin B. Alexander von Humboldt C. Rudolf Virchow D. Louis Pasteur