Discover the complex resting habits of river otters, utilizing permanent, secure holts and simple, temporary couches based on travel and family structure.
Explore the core concept of "derived" in biology—how evolutionary novelty is identified, contrasted with ancestral traits, and applied to map species relationships.
Is CCl4 ionic? Analyze the criteria for chemical bonds, electronegativity differences, and how molecular symmetry dictates its resulting nonpolar nature.