During development of the continental drift hypothesis, pangaea was the name wegener gave to the

Me with these questions if you’re it sure don’t answer

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Which sequence correctly shows the path of carbon dioxide during repiration?