Biology-how-life-works-by-morris-4th-edition -1... -

But here’s the twist: Cilia’s DNA was identical to that of the paramecium floating 50 micrometers to her left. Why, then, did she move differently? Because of (Chapter 17). Her great-grandmother had survived a viral attack, leaving chemical marks on her DNA that silenced certain ion-channel genes. That silent inheritance made Cilia slightly more cautious—and today, that caution saved her life.

Many introductory biology courses struggle with "content bloat." Morris and his team counter this by selecting specific, high-interest examples to illustrate broader biological truths. Whether it’s discussing CRISPR technology or the nuances of climate change, the text remains grounded in real-world applications. Biology-How-Life-Works-by-Morris-4th-Edition -1...