Science Page 2

William Harvey was an English physician who made groundbreaking discoveries in the field of anatomy and physiology. He is best known for his work on the circulatory system.

The findings of William Harvey challenged the Catholic Church’s views about the human body because they showed that the body was not static, but rather constantly in motion.

Dr. Edward Jenner invented the smallpox vaccine in 1796. This was the first vaccine ever created, and it is still used today.

Rosalind Franklin’s discoveries helped Watson and Crick build an accurate model of DNA by providing them with critical information about the molecule’s structure.

He observed that the animals on the different islands were different from each other, and that the animals on each island were well-suited to their environment.

Theodor Schwann contributed to the cell theory by proposing that all living things are composed of cells and that the cell is the basic unit of structure and function in living things.

He was a Swedish botanist, physician, and zoologist, who laid the foundations for the modern biological naming scheme of binomial nomenclature. He is known as the “father of modern taxonomy.”

Rosalind Franklin studied physics and chemistry at the University of Cambridge.

1. His theory of natural selection was controversial because it suggested that humans were not specially created by God.
2. His theory was also controversial because it suggested that humans had evolved from less advanced life forms.

One answer is that new species can arise when there is a physical separation of a population so that members can no longer interbreed. Another is that new species can arise when there is a change in the environment that leads to a change in the heritable traits that are advantageous.