Human Adaptation Flashcards
What is Diversity
Diversity can be defined as a concept which encompasses acceptance and respect by understanding that each individual is unique, and recognizing the individual differences as well as appreciating interdependence of humanity, cultures, and the natural environment.
Biocultural Evolution
Humans live in cultural environments that are continually being modified by human activity. • Natural selection pressures operate within specific environmental settings. • Wild animals and humans living in nature without the luxuries of today’s cultural context are still exposed to pure natural selection that Darwin had in mind. • For most humans and even many of our hominin ancestors this means an environment dominated by culture. • Culture is passed from one generation to the next mainly independent of biological factors. • However, it is important to remember that the ability to assimilate culture and function within it is influenced by biological factors. 6 Biocultural evolution • Culture and biology interact. • Modern humans are the result of a biocultural evolution. • Biology makes culture possible and developing culture further influences the direction of biological evolution.
Biological Interactions resulted in:
Anatomical
Biological(Physiological) and
Behavioral Changes
Gene Pool
The genes already present in a population of sexually reproducing organisms create a gene pool.
Synthetic Theory of Evolution
The Modern Synthetic theory of Evolution, describes the merging of the Darwinian evolution with the Mendelian genetics, resulting into a unified theory of the evolution.
This theory is also referred to as the Neo-Darwinian theory.
The modern synthetic theory includes the scientific evidence from the genetics.
The genes already present in a population of sexually reproducing organisms create a gene pool.
The random assortment and independent segregation during meiosis and the recombination during reproduction reshuffles the genes and provides the mechanism for variation in the gene pool.
The only source of completely new variations is mutation.
Evolution (“adaption”) is a change in frequencies of alleles in the gene pool of a population.
What is looked at for Sex Determination
Pelvis
Skull