Metamorphosis: In biology, striking change of form or structure in an individual after hatching or birth. Hormones called molting and juvenile hormones, which are not species specific, apparently regulate the changes. These physical changes as well as those involving growth and differentiation are accompanied by alterations of the organism's physiology, biochemistry, and behavior. From animal development. Metamorphosis, the transformation of the larva into an adult, is a more or less complicated process depending on the …showed first 75 words of 258 total…

…showed last 75 words of 258 total…omposition and geometry of the surrounding reaction system. History & Philosophy. The study either of the historical process and its development or of the methods used by historians to understand their material. The term history may be employed in two quite different senses: it may mean (1) the events and actions that together make up the human past, or (2) the accounts given of that past and the modes of investigation whereby they are arrived at or constructed.