BIO SCI 94 Study Guide - Midterm Guide: Ecology, Primary Nutritional Groups, Gamete

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

Document Summary

Domain, kingdom, phylum, class, order, family, genus, species. What are the three major branches of the. Outline the difference between a theory and a hypothesis. Theory- proposed explanation for a very general class of phenomena supported by a broad range of evidence. Hypothesis- proposed explanation for a specific phenomenon or set of observations. Process: a change in allele frequency in a population over time. 40 is 1. 3 billion years, and carbon-14 is 5,700 years (date organisms that died in last 50,000 years) A homology is a similarity in characteristics due to shared ancestry. There are structural (vestigial structures), developmental (gill slits in human embryos), and genetic/molecular homologies. Analogies are adaptations by members of different lineages to a similar environment. This is synonymous with homoplasy- similarity between organisms not due to common descent, and convergent evolution. Define allele, allele frequency, genotype, phenotype, and trait. Allele frequency is the percentage of an allele in a population.