1. which of the following characteristics are necessary for a fossil to be a good index fossil? (choose all…

1. which of the following characteristics are necessary for a fossil to be a good index fossil? (choose all that apply) easy to identify at the species level short - lived had a broad geographic distribution an invertebrate

1. which of the following characteristics are necessary for a fossil to be a good index fossil? (choose all that apply) easy to identify at the species level short - lived had a broad geographic distribution an invertebrate

Answer

Brief Explanations:

Index fossils are used to date rock layers. They need to be easily identifiable to accurately correlate rock layers across different locations. Being short - lived means they represent a narrow time interval, useful for precise dating. A broad geographic distribution allows them to be found in many places for regional and global correlation. The type of organism (invertebrate or not) is not a defining characteristic for an index fossil.

Answer:

easy to identify at the species level, short - lived, had a broad geographic distribution