Lesson 3&4 Flashcards
Darwin’s original contribution to biology
- Natural selection
Associated with Lamarck?
- Inheritance of acquired characteristics
Theory
- A group of logically consisted and falsifiable explanations strongly supported by different lines of evidence
Evolution=
Descent with modification(changes in heritable characteristics in a population over time)
Evolution produces
Analogous
Why did the same structure appear on them?
common ancestor
Local conditions
Modify depending on living environments; Natural Selection.
What kind of information you need for natural selection?
Genetic information
No variation, no?
Evolution
Homology
Common ancestor
Analogous traits
Common traits, not from the same ancestor
Artificial Selection
Changing similar phenotypes and environments
Developmental genetics
- Comparative Evidence; Common Ancestry
Developmental genetics
Comparative evidence
Embryology/ developmental genetics
Atavism
Hypertrichosis
atavism
vestiges
Darwin’s tubercle
Lanugo
Vestiges
Flight in birds and insects is?
Analogous trait
the bones that support the wings of birds and the wings of bats are?
Homologous
All of the following are atavism except
Human lanugo
Natural selection= Evolution
false- Natural selection will figure that trait
Artificial selection
evolutionary process in which humans consciously select for or against particular features in organisms
Malthus
Population grow at exponential rate; more offspring produced than can possibly survive.
