Chapter 22 - Descent with Modification: A Darwinian View of Life

Evolutionary trees

________ are theories that synthesize our present understanding of ancestral patterns.

Lamarck

________ was reviled throughout his lifetime, particularly by Cuvier, who disputed that species ever develop.

Carolus Linnaeus

________ (1707- 1778), a Swedish physician and botanist, was one such scientist.

Evolution

________ may also be seen in two distinct but related ways: as a pattern and as a process.

natural selection

Organisms share traits due to shared descent (homology) or ________ affecting independently developing species in comparable settings in similar ways (convergent evolution)

Charles Darwin

________ was motivated to provide a scientific explanation for these three major findings more than a century and a half ago.

Fossils

________ provide a third form of evidence for evolution.

Linnaeus

________ created the two- part, or binomial, system for naming species (such as Homo sapiens for humans) in the 1750s, which is still used today.

Darwin

________ ushered in a scientific revolution- the age of evolutionary biology- when he presented his concept in his book The Origin of Species.

blue arrow

(A) The astragalus is formed like a dog in most animals, with a double hump on one end (red arrows) but not the opposite end (________)

fossil record

The ________ chronicles the path of evolution, demonstrating that ancient creatures varied from modern organisms and that many species were extinct.

Evolution

________ may also be described as a shift in a population's genetic composition from generation to generation.

Carolus Linnaeus

________ (1707- 1778), a Swedish physician and botanist who wanted to catalog life's diversity "for the greater glory of God, "was one such scientist.

Fossils

________ also provide evidence of evolutionary changes that have happened in diverse groups of animals.