Science Page 4

In the late 1700s, English physician Edward Jenner noticed that milkmaids who had been infected with cowpox never came down with smallpox. Jenner hypothesized that cowpox could protect people from smallpox and set out to test his theory.

In the early 1900s, Thomas Hunt Morgan conducted genetic studies on fruit flies. He discovered that genes are located on chromosomes and that they are responsible for inherited traits.

Robert Hooke was an English scientist who discovered cells in 1665. He also invented the compound microscope.

Robert Hooke discovered that when he viewed objects through a microscope they appeared much larger than they actually were. He also discovered that these objects were made up of small cells.

An English ethologist, evolutionary biologist, and author, Richard Dawkins is known for his influential work on the gene-centered view of evolution and for his popularization of the theory through his 1976 book, The Selfish Gene.

Charles Darwin discovered that all species of life have descended over time from common ancestors, and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection.

The book that Charles Darwin wrote is called “The Origin of Species.” In this book, Darwin proposes the theory of evolution by natural selection.

Charles Darwin discovered that pigeons could be bred to create different varieties, depending on the traits that were selected for.

The universe is mostly a deep, dark black. But on a clear night, away from city lights, you can see a faint band of light arching across the sky. This is the Milky Way, our home galaxy.

A P&L statement is a financial statement that summarizes the revenues, costs, and expenses incurred during a specified period, usually a fiscal quarter or year. The P&L statement is one of the key financial statements used by management to make decisions and by investors to assess a company’s financial health.