It Is Important to Gather Evidence from Several Sources Because

question 60

Multiple Choice

It is important to gather evidence from several sources because

• A) alternative explanations for any single piece of evidence could exist.
• B) it is easier to explain a lot of data, relative to a little data.
• C) a single study is likely to be decisive.
• D) people often make mistakes.

---

Definitions:

Microevolution

Change in the genetic makeup of a species or a small group of organisms over a brief time period, regarded as evolutionary.

Speciation

Evolution of a new species.

Mass Extinctions

Events in Earth's history where large numbers of species become extinct worldwide in a relatively short geological timeframe, drastically reducing biodiversity.

Environmental Factors

Encompasses all external elements and conditions affecting an organism's life, from climate to food availability.