What is discouraged in a traditional economy? O family traditions
O work
O stability
O change

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

Describe the two types of vascular tissue