Lincoln Steffens, Jane Addams, Upton Sinclair, Ida Tarbell, Jacob Riis,
With the invention of the stethoscope, physicians were able to listen to the various sounds made by the heart and lungs. And began to be able to identify if patients had any diseases or ailments.
Answer:
Many factors impact beef trade, such as environmental, economic, social, biological, and government regulations. Consequently, changes to these factors can lead to substantial disruptions in trade. One notable disruption to the U.S. beef trade market was the discovery of the first case of Bovine Spongiform Encephalopathy (BSE) in the United States. A more recent (and ongoing) trade disruption has been the use of hormones and beta agonists in U.S. cattle production. The following article discusses these issues and their impacts on U.S. beef exports.
Explanation:
Answer:
A. concrete operations; formal operations
Explanation:
The concrete operations stage is when children are able to start thinking in a more logical and organized form about specific events. Also, they began to think about the feelings of other people. This stage is when kids are between 7 and 11 years old.
The formal operations stage is when children start to analyze hypothetical problems and think in an abstract form. This stage is when kids are 12 and up.
According to this, Nine year old Desi is in the concrete operations stage and her 15-year-old brother is likely in the formal operations stage.
