Quiz 1 - Answers

QUIZ #1 CHAPTER 1

1. Describe the two main dynamic processes of an ecosystem. (10 pts) 3. Describe the two observations that led Darwin to his inescapable conclusion. State this conclusion. (20 pts) 5. Describe the two key features that distinguish science from other styles of inquiry. (10 pts)

Answer Key The following slides show the question and the amount of points for each part of the complete answer

Describe the two main dynamic processes of an ecosystem. (10 pts) • 5 pts. – Cycling of Nutrients – Flow of Energy

• 5 pts. – If you gave an example that showed nutrients going from producer to consumer in a cycle. – If you gave an example of the flow of energy from sunlight to producer to consumer.

Describe the two observations that led Darwin to his inescapable conclusion. State this conclusion. (20 pts) • 5 pts. – Fact 1: Overproduction and Struggle for Existence

• 5 pts. – Fact 2: Individual Variation

• 10 pts. – Unequal reproductive success

Describe the two key features that distinguish science from other styles of inquiry. (10 pts) • 5 pts. – A dependence on observations and measurements that others can verify

• 5 pts. – The requirement that ideas (hypotheses) are testable by experiments that others can repeat

Distinguish between a hypothesis and a theory. (10 pts) • 5 pts. – A theory is much broader in scope than a hypothesis.

• 5 pts. – A hypothesis is an educated guess, while a theory is a comprehensive explanation supported by an abundance of evidence.