2.
In the past, mass extinctions encouraged the rapid evolution of surviving species (1 point)
• by changing developmental genes.
• by making new habitats available to them.
• because they killed all organisms that had coevolved.
• because they spared all organisms that had evolved convergently.
3.
The Australian flying phalanger is a marsupial flying squirrel. Its appearance, behavior, environment, and diet closely resemble those of the American flying squirrel, a placental mammal. This resemblance is most likely due to (1 point)
• adaptive radiation.
• convergent evol

Question

2.   
In the past, mass extinctions encouraged the rapid evolution of surviving species  (1 point)
•	 by changing developmental genes.
•	 by making new habitats available to them.
•	 because they killed all organisms that had coevolved.
•	 because they spared all organisms that had evolved convergently.
3.   
The Australian flying phalanger is a marsupial flying squirrel. Its appearance, behavior, environment, and diet closely resemble those of the American flying squirrel, a placental mammal. This resemblance is most likely due to  (1 point)
•	 adaptive radiation.
•	 convergent evol