Hong Zhan Yang (UH1)
AP Biology: Textbook Notes
Chapter 22: The Origin of Species
Speciation- the process by which one species splits into two or more species.
Microevolution- changes over time in allele frequencies in a population.
AP PSYCHOLOGY PERIOD 3
By Kayci Mesko
Abraham Maslow, born on April 1, 1908, was one of the most influential people in the
world of psychology. Maslow grew up in a very troubled home, with parents that he loathed, he
had a lo
1 What are genes, and how do behavior geneticists explain our individual
Genes are the biochemical units of heredity that make up chromosomes, the threadlike coils
of DNA. When genes are "turned on" (expressed), they provide the code for crea