The first comprehensive lifespan view was developed by Erik Erikson. It is called the Erikson's stages of psychosocial development which identifies eight stages where a developing individual should be able to go through from infancy to adulthood. These stages are infancy (0 to 23 months), early childhood (2 to 4 years), preschool years (4 to 5 years), school age (5 to 12 years), adolescence (13 to 19 years), early adulthood (20 to 39 years), adulthood (40 to 64 years) and maturity (65 to death). In each stage, specific values, psychosocial crisis, significant relationship and existential question are being specified by Erikson.
Explanation:
Humans, since they started taming wild cows, began artificially selecting the cows that produced more milk because this trait is desirous. Humans depended on milk for food. This artificial selection by humans ensured that traits for cows for more milk production were preserved in the population of tamed cows. Humans also went further to breed the cows that produced more milk leaving out those that didn’t. Just like natural selection, artificial selection favors the desired traits in a population.
Learn More:
For more on artificial selection check out;
brainly.com/question/14128683
brainly.com/question/3029269
#LearnWithBrainly
