Which organism from the chart would be the best choice for an index fossil?

Rah is completing a school project on the expansion of fast food restaurants across the united states. she finds a map that shows a clear pattern of restaurants beginning in the east and expanding west. this map was most likely created using the technology of

In an effort to japan recover from the devastating effects of the 1929 depression, japanese military leaders in the 1930s formed an alliance with nazi germany negotiated more trade treaties with the soviet union closed its doors to western trade adopted a policy of imperialist expansion

Which of these is most likely a characteristic of a non-radioactive daughter isotope after it is form from the parent isotope a . stable electron’s b. stable nucleus c. positively charged atom d. negatively charged atom