INTEGBI N33 Lecture Notes - Lecture 2: Jean-Baptiste Lamarck, Carl Linnaeus, Binomial Nomenclature
31 Mar 2018
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Document Summary
Observation and experimentation to study animals; nature developed from simplicity to complexity. Gradation in organisms with grand scale going from worms to humans. Organized all animals named and grouped them according to similarities. Organisms and component parts increase in size through time. New need leads to a new anatomical structure. Inheritance of acquired traits doesn"t affect sex cells. Hypothesis that physiological changes acquired over the life of an organism (such as the enlargement of a muscle through repeated use) may be transmitted to offspring. Need genetic potential to evolve, (if genes weren"t changed, nothing would change) natural selection responsible to disappearing traits, can only inherit genetic makeup. Publishes origin of species - descent with modification . Nature is prodigal - lots of reproduction; organisms reproduce much more offspring than they need to in order to continue their legacy. Adult population #s remain constant over time. Therefore, there is a severe struggle to survive in nature.
