Questions about proximate cause of bird song variation: 1. What genes/proteins/hormones are involved in song production? 2. What are the brain structures.
Chapter 17 Opener. Figure 24.5 A summary of reproductive barriers between closely related species.
Chapter 17 Opener
Intro to Geography of Language. 2 VOCABULARY DIFFERENCES What do you fry your eggs in? creeper, fryer, frying pan, fry pan, skillet, or spider What do.
