Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
According to Charles Darwin, organic evolution is "descent with modification," which simply means....
|
Species change over time.
|
|
|
The idea of evolution did not originate with Charles Darwin. Who first believed that living organisms changed over long time periods?
|
Empedocles and Aristotle
|
|
|
The 18th century comparitive anatomist, Buffon, became convinced that....
|
Change had occurred during the history of life on earth, but he thought that organisms degenerated from their previous state.
|
|
|
Jean Lamarck proposed a theory of evolution involving...
|
Inheritance of acquired characteristics.
|
|
|
Lyell and Hutton came up with this idea and it means....?
|
Lyell and Hutton espoused the idea that natural forces such as wind, rain, and geological uplift, rather than catastrophic events, shaped the earth. This idea was known as Uniformitarianism.
|
|
|
Darwin observed _________ in the Galapagos Islands; today they are used as a classic example to illustrate great adaptive radiation.
|
Finches
|
|
|
What are the four main points of Darwin's theory?
|
1. All organisms have a greater reproductive potential than is ever utilized.
2. Inherited variations exist - these can be helpful, harmful or neutral. 3. Resources are limited; therefore, existence is a struggle. 4. Adaptive traits become more common in subsequent generations. Maladaptive traits become less common because organisms with these traits are less likely to reproduce. |
|
|
Before publication of Darwin's book, he published a short summary of his theory alongside a paper written by, ____________, who had independently arrived at many of the same conclusions.
|
Alfred Wallace
|
|
|
Studies in biogeography....
|
Record patterns of animal distribution and seek to understand them.
|
|
|
Darwin's most important publication was...
|
On the Origin of Species by Means of Natural Selection
|
|
|
Alfred Wallace based his theory of evolution on observations made while he was on a zoological expedition to the...
|
Malay Archipelago
|
|
|
_________ are evidences of past life preserved in stone, coal or other materials.
|
Fossils
|
|
|
An important component of Darwin's theory is that...
|
Natural populations contain genetic variation.
|
|
|
Homologous characteristics and structures evolve between species because....
|
The species share a common ancestry.
|
|
|
Thomas Malthus believed that...
|
Poverty, war, plague, and famine result from a shortage of resources due to the human population's potential to increase geometrically.
|
|
|
Analogous structures
|
Similar structures in unrelated organisms that arise through convergent evolution.
|
|
|
Darin found fossil remains of several extinct species in South America. He considered the fossils to be evidence that...
|
The species composition of the planet had changed over time.
|
|
|
Pelvic bones in whales are examples of...
|
Vestigial structures.
|
|
|
A type of absolute dating that uses the degree of change in regions of DNA relies on a concept called the...
|
Molecular clock.
|
|
|
Organic evolution |
"Descent w modification" PPP can change over time |
