BIO SCI 94 Lecture 7: Week 3 Lectures 7-9

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Nancy Aguilar- Roca

Document Summary

Animals with only one difference are related. Some traits (such as backbone) are not useful when figuring out difference between species. If all animals have the trait it is the least useful. Three branches coming off of one point. Unrelated organisms descended from one or more ancestor. Includes an ancestor but not all of its descendants. Something is left out of a group . Similar characteristics that did not emerge from common ancestry. Plates move and may collide or split apart. Experimental group: the perch height was increased with the presence of their predators. Control: % of anoles on the ground will remain constant over time. Experimental: % of anoles on the ground will decrease over time. Most microbes do not grow in culture. Microbiomes: all of the different species of bacteria that are in a sample. Microbial communities in a humans microbiome affect . Large amounts of o 2 < cambrian explosion < eukaryotes < colonization of land.