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Chapter 15-1
The Puzzle of Life's Diversity
6
Biology
10th Grade
03/30/2009

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Term

 

 

evolution

Definition
A change in a kind of organism over time; process by which modern organisms have descended from ancient organisms.
Term
Theory
Definition
 A well tested explanation that unifies a broad range of observations.
Term
Fossil
Definition
A preserved remains or evidence of an ancient organism.
Term

 

What was Charles Darwin's contribution to science?

Definition
During his travels, Darwin made numberous observations and collected evidence that led him to propose a revolutionary hypothesis about the way life changes over time.
Term

 

What pattern did Darwin observe

among organisms

of the Galapágos Islands?

Definition
Darwin observed that the characteristics of many animals and plants varied noticeably among the different Galapagos Islands.
Term
What did Darwin's travels reveal to him about the number and variety of living species?
Definition

Darwin was intrigued by the fact that so many plants and animals seemed remarkably well suited to whatever environment they inhabited.  He was impressed by the many ways in which organisms survived and produced offspring.  He wondered if there was some process that led to such a variety of ways of reproducing.

 

 

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