There is a number of different mating systems among animals. Some animals tend to be monogamous, others are polygamous. In the outline below you will learn the similarities and differences between mating systems. http://web.pdx.edu/~zelickr/animal-behavior/lecture-outlines/lectures2013winter/LS13-ch11-mating-systems-1.pdf
Drosophila: from genes to phenotypes
Drosophila has always been a role model in research, therefore it is useful to know the basics of its anatomy, physiology, genetics, and more. http://home.sandiego.edu/~cloer/bio376f08/376f08_lectures/Lect12-14-376F08(Drosophila).pdf
Chordates
Bellow there are notes that will help you to get acquainted with chordates.Chordates are defined as organisms that possess a structure called a notochord, at least during some part of their development. http://bioserv.fiu.edu/~biolab/labs/1011/supplemental_materials/ http://animaldiversity.ummz.umich.edu/accounts/Chordata/ http://biology.clc.uc.edu/courses/bio106/chordate.htm
Molluscs and Annelids
Hello, Here are some study material for the topics about Molluscs and Annelids. http://bioserv.fiu.edu/~biolab/labs/1011/supplemental_materials/ And also an excerpt from Raven Biology http://www.mhhe.com/biosci/genbio/raven6b/graphics/raven06b/other/raven06_45.pdf