Figure 23.3
- Figure 23.4
This evolutionary tree shows the influence of speciation and extinction on the diversity of life. After 2 million years lineage A had a(n) ________ rate of speciation and ________ extinction rates compared to lineage B.
A) higher; lower
B) lower; higher
C) increased; decreased
D) improved; enhanced

Question

Figure 23.3
- Figure 23.4
This evolutionary tree shows the influence of speciation and extinction on the diversity of life. After 2 million years lineage A had a(n) ________ rate of speciation and ________ extinction rates compared to lineage B.
A) higher; lower 
B) lower; higher 
C) increased; decreased 
D) improved; enhanced

Quizplus · Accepted Answer

Lineage A had a higher rate of speciation and lower extinction rates compared to lineage B, which resulted in a greater diversity of descendants over time.

Figure 23.3 - Figure 23.4