Chapter 22 Flashcards
Scala Naturea
Hypothesis on how evolution takes/took place
Lamark’s Mechanisms
1) Use & Disuse : parts of the body that is consistently used becomes bigger and stronger
2) Inheritence of acquired characteristics: an organism could pass these modifications to its offspring
Adaptation
Inherited characteristics of organisms that enhance their survival and reproduction
4 types of evidence that support Darwin’s theory
Direct observation of evolution, Homology, fossil record, biogeography
Homology
Similarity resulting from common ancestry
Convergent evolution
Independent evolution of similar features in different lineages
Analogy
Species share feature is because of convergent evolution, the resemblance is said to be analogous