Chapter 15 Test Flashcards
Theory
Well supported explanation of phenomena that have occurred in the natural world
True/False? Darwin contributed more to our understanding of evolution than anyone else.
True
Charles Darwin was born in 1809.
The voyage lasted 5 years and took him around the world.
Know these
True/False? Darwin was looking for a scientific explanation for the diversity of life on Earth.
True
Observations that Darwin made?
An enormous number of species inhabit Earth. Some species that lived in the past no longer live on Earth.
Fossils?
Preserved remains of ancient organisms are called fossils.
What were the questions that arose as Darwin studied fossils?
Why had so many disappeared? How were they related to living species?
True/False? Of all the Beagle’s ports of call, the one that influenced Darwin the most was the Galápagos Islands.
True
Facts on the Galápagos Islands?
The smallest, lowest islands are hot and wet. The higher islands have more rainfall.
Differences in shell shapes of tortoises from Hood Island and Isabela Island?
Hood tortoises have long necks and shells that are curved and open around arms and legs. Isabella have dome shaped shell and short neck.
Small brown birds on the Galápagos Islands were differed in the shape of their what?
Beaks
Darwin thought about what on his way home from England?
He remembered the tortoise’s shells differed from island to island.
What hypothesis did Darwin develop to explain his findings?
Separate species would have evolved from an original South American ancestor species after becoming isolated from one another.
The process by which modern organisms have descended from ancient organisms
Evolution
