BIO SCI 94 Chapter Notes - Chapter 1: Phylogenetic Tree, Cell Theory, Organism

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Robin Bush

Document Summary

Lesson 1 - chapter 1: biology & tree of life + bioskill 7: phylogenetic trees. 1. 3: the theory of evolution by natural selection. Organism a living entity made up of one or more cells elements share ve characteristics energy, cells, information, relocation, and evolution. Theory an explanation for a very general class of phenomena or observations that are supported by a wide body of evidence. Arti cial selection changes in populations that occur when humans select certain individuals to produce. Fitness the ability of an individual to produce viable o springs. Adaptation a trait that increases the tness of an individual in a particular environment. Tree of life a family tree of organisms. Rna is used to determine this certain species should share certain changes that no other species has. Phylogenetic trees show relationships between species branches represent populations through time nodes (or forks) occur when ancestral groups split tips represent groups living today or a dead end.