Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

تمرين 24

Distinguish among genes , traits , and chromosomes. What is a cell ? What is matter quality ? Distinguish between high-quality matter and low-quality matter and give an example of each. Distinguish between a physical change and a chemical change ( chemical reaction ) and give an example of each. What is the law of conservation of matter , and why is it important?