BIO152H5 Study Guide - Final Guide: Chemical Polarity, Covalent Bond, Asexual Reproduction
Document Summary
Identify global challenges that may require a biological solution: global warming and climate change, describe how an organism"s environmental adaptations result from evolution, as the environment selects for beneficial traits, the offspring better adapts in the population. At room temperature, these water molecules are loosely linked and free to move around easily, which is what defines the liquid state of matter. At 0 c, the molecules line up in a lattice structure, with water molecules the more positively charged hydrogen attracting the more positively charged hydrogen linking up with each other in a process called hydrogen bonding. This causes the molecules to move more slowly and take up more space. Because the same weight or mass now takes up more space, it is less dense and floats on water: how properties of water support life. Cohesive behavior; hydrogen bonds hold water molecules together, transport water against gravity.
