Paleontologists Estimate That ________________

question 33

Multiple Choice

Paleontologists estimate that ________________.

• A)99% of all species that have ever existed are now extinct
• B)more than 99% of all species alive today have been discovered and described
• C)extinction is tied exclusively to human activities
• D)more species are alive today than ever before
• E)biodiversity is evenly spread over the earth's biomes

---

Definitions:

Rule Of 70

A simple way to estimate the number of years it takes for an amount to double, by dividing the number 70 by the annual growth rate percentage.

Interest

The cost of borrowing money or the return on investment for savings and investments, typically expressed as an annual percentage rate.

Risk Averse

Describing individuals or entities that prefer to avoid risk and would rather choose an alternative with a more certain but possibly lower return, than an option with a higher but uncertain return.

Utility Function

A mathematical representation that relates an individual’s consumption bundle to the level of satisfaction or utility derived from it.