Why Are Assemblages of Fossils Seen in Successive Geological Periods

question 13

Multiple Choice

Why are assemblages of fossils seen in successive geological periods so different?

• A) Rapid continental drift has altered the positions of continents such that the strata represent different locations on Earth.
• B) Rapid bursts of evolution have occurred due to changes in oxygen concentrations.
• C) Mass extinctions and the subsequent rebound of biological diversity have brought about sudden changes in the assemblages.
• D) Organisms continue to evolve during periods when fossilization does not occur.
• E) Fossil assemblages across successive strata blend into one another,and there are no sharp breaks.

---

Definitions:

Discount Rate

In the context of discounted cash flow analysis, it's the rate used to determine the present market value of anticipated cash flows.

Payments

The transfer of money, or its equivalent, from one party to another as a fulfillment of an obligation or for the purchase of goods or services.

Yearly

Relating to or happening every year; annual.

Borrow

The act of receiving something with the intention of returning it or its equivalent to the owner at a later date.