Answer to Question 1
Discovery is the process of learning about something previously unknown or unrecognized. Historically, discovery involved unearthing natural elements or existing realities, such as discovering fire or the true shape of the earth. Today, discovery most often results from scientific research. For example, the discovery of a polio vaccine virtually eliminated one of the major childhood diseases. As more discoveries have occurred, people have been able to reconfigure existing material and nonmaterial cultural items through invention. Invention is the process of reshaping existing cultural items into a new form. Guns, video games, and airplanes are examples of inventions that positively or negatively affect our lives today. When diverse groups of people come into contact, they begin to adapt one another's discoveries, inventions, and ideas for their own use. Diffusion is the transmission of cultural items or social practices from one group or society to another through such means as exploration, military endeavors, the media, tourism, and immigration.
Answer to Question 2
True
Experiment on newt embryos that led to the discovery of Spemann's organizer.
Bipolar disease. The term bipolar means “pertaining to two poles.” The individual with this form of
“Career choice” for many women means leaving their paid jobs for a number of years when they ...
Global Climate Change
Observed change in surface temperature from 1901 to 2012
Movement of fluids in the body is accomplished by A. osmosis, B. diffusion, or C. active transport