What Is the Best Explanation for the Speciation Event That

question 27

Multiple Choice

What is the best explanation for the speciation event that produced the wild sunflower Helianthus anomalis?

• A)hybridization of two sunflower species where natural selection produced extensive genetic changes, but with no change in chromosome number
• B)hybridization of two sunflower species where natural selection produced extensive genetic changes with duplication of chromosomes
• C)hybridization followed by asexual reproduction
• D)gradual speciation that occurred over millions of years
• E)allopolyploid speciation

---

Definitions:

Social Anxiety

A chronic mental health condition characterized by intense fear or anxiety in social situations, leading to avoidance or distress.

Distinctive Aspect

A unique or characteristic feature that differentiates something or someone from others.

Classical Conditioning

A learning process through which associations are made between a natural stimulus and a neutral stimulus to elicit a behavior.

Observation

The action or process of closely monitoring or watching something or someone carefully in order to gain information.