Week 1 - Intro Flashcards
Who noted that populations grow exponentially but food production only increases linearly?
Thomas Malthus
Whose book, which greatly influenced his thinking, did Charles Darwin take with him on the Beagle?
Charles Lyell
Who co-authored a paper on Natural Selection with Charles Darwin, published in the Philosophical Transactions of the LinnaeanSociety in 1858?
Alfred Russel Wallace
Approximately how long did Darwin spend gathering evidence for his book, On the Origin of Species, after returning from his Beagle voyage?
20 years
What is required for evolution by natural selection to occur?
Genetic variation
What was Darwin’s incorrect theory of heredity called?
Pangenesis
A flood destroys 90% of a single tree species on an island. What is this known as?
Genetic bottleneck
What’s neutral evolution?
A theory that evolutionary changes at the molecular level are due to random genetic drift, rather than natural selection.
What thing does the rate of adaptation depend upon?
Biological fitness
3 Evidences for evolution?
- Transitional stages in the fossil record
- Anatomy, some structures indicate sharing with a common ancestor
- DNA and the genetic code
How does neutral variation lead to evolution?
- family size
- founder effects
- genetic bottlenecks