Fossil Record

Word Bank: punctuated equilibrium, gradualism, contrast, debate, bursts

The __ theory suggests that evolution occurs in bursts of rapid change.

Word Bank: punctuated equilibrium, gradualism, contrast, debate, bursts

The __ theory proposes that evolution happens slowly and gradually over time.

Word Bank: punctuated equilibrium, gradualism, contrast, debate, bursts

Punctuated equilibrium is in __ to the traditional view of gradualism.

Word Bank: punctuated equilibrium, gradualism, contrast, debate, bursts

Scientists continue to __ the merits of these two theories.

Word Bank: punctuated equilibrium, gradualism, contrast, debate, bursts

Evolution is believed to happen through __ of rapid change and long periods of stability.

Tags

NGSS.HS-LS4-4

Which theory suggests that evolution happens slowly over time?

• Punctuated equilibrium

• Gradualism

• Both a and b

• Neither a nor b

What is the main difference between punctuated equilibrium and gradualism?

• The speed of evolution

• The causes of evolution

• The fossil record

• All of the above

Tags

NGSS.HS-LS4-5

Which theory is the traditional view of how evolution occurs?

• Punctuated equilibrium

• Gradualism

• Both a and b

• Neither a nor b

Why do scientists continue to debate these two theories?

• There is no clear evidence for either theory

• They have different implications for understanding evolution

• They are both outdated and irrelevant

• Scientists can't agree on which theory is correct

What does the theory of punctuated equilibrium suggest about the pace of evolution?

• Evolution happens slowly and gradually

• Evolution happens in bursts of rapid change

• Evolution is a random process

• Evolution is driven by external factors

Tags

NGSS.HS-LS4-5