Marsupials are a very ancestral form of mammal, evolving before placental mammals over 70 million years ago. Today Australian marsupials can be compared to placental mammals on other continents. It could be said that today's Australian marsupials and today's placental mammals have

A. undergone convergent evolution.
B. undergone divergent evolution.
C. undergone selective advantage.
D. developed homologous structures.
E. undergone heterozygote advantage.


Answer: A

Biology & Microbiology

You might also like to view...

Because embryonic stem cells can form any tissue in the human body, they are termed ____________________; adult stem cells, on the other hand, are ____________________, since they can only form a limited number of cells types

Fill in the blank(s) with correct word

Biology & Microbiology

All evolutionarily meaningful characters evolve at the same rate

Indicate whether the statement is true or false.

Biology & Microbiology

Why is the velocity of blood flow lowest in capillaries?

a. Capillaries are far from the heart, and blood flow starts to slow as it moves away from the heart. b. The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle. c. The total surface area of capillaries is larger than the total surface area of the arterioles. d. The capillary walls are not thin enough to allow oxygen to exchange with the cells. e. The diastolic blood pressure is too low to deliver blood to capillaries at a high flow rate.

Biology & Microbiology

What do scientists use to apply cladistics?

a. homologous traits b. homoplasies c. analogous traits d. monophyletic groups

Biology & Microbiology