The Puzzle of Life's Diversity - Teachers.Henrico Webserver

The Puzzle of Life's Diversity - Teachers.Henrico Webserver

The Puzzle of Lifes Diversity Section 151 This section outlines Charles Darwins contribution to science. It also describes the pattern of diversity he observed among organisms of the

Galpagos Islands. Introduction The process by which modern organisms have descended from ancient organisms is called .

Evolution Introduction to Darwin A well-supported explanation of phenomena that have occurred in

the natural world is a(an) . Theory Introduction to Darwin

Is the following sentence true or false? Charles Darwin contributed more to our understanding of evolution than anyone else.

True Voyage of the Beagle Circle the letter of each sentence that is true about Charles Darwin.

a. He was born in 1809. b. He was an English naturalist. d. The voyage lasted 5 years and took him around the world. Voyage of the Beagle

Voyage of the Beagle Is the following sentence true or false? Darwin was looking for a scientific explanation for the diversity

of life on Earth. True Darwins Observations Circle the letter of each

observation that Darwin made. An enormous number of species inhabit Earth. Some species that lived in the past no longer live on Earth.

The preserved remains of ancient organisms are called . Fossils As Darwin studied fossils, what new questions arose?

He wondered why so many species had disappeared and how they were related to living species. Is the following sentence true or false? Of all the Beagles ports of call,

the one that influenced Darwin the most was the Galpagos Islands. True Circle the letter of each choice that is true about the

Galpagos Islands. The higher islands have more rainfall. How did Darwin explain differences in shell shape of tortoises from Hood Island and Isabela Island?

Darwin thought that Hood Island tortoises had curved shells to allow them to reach the sparse vegetation on their island, whereas Isabela Island tortoises had dome-shaped shells because vegetation on their island was more abundant and closer to the ground.

Darwin observed that small brown birds on the Galpagos Islands differed in the shape of their . Beaks

The Journey Home What did Darwin think about on his journey home to England? Darwin thought about how the characteristics of many animals and plants, including mockingbirds and

tortoises, varied noticeably among the different islands of the Galpagos. After he returned to England, what hypothesis did Darwin develop to explain his findings?

Separate species evolved from a common ancestor after becoming isolated from one another on different islands of the Galpagos.

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