Porifers and Cnidarians

Hi, In this post you will find a good study guide on Porifers and Cnidarians.

Mating systems in animals

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.   Big thanks to 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.   Big thanks to http://home.sandiego.edu/~cloer/bio376f08/376f08_lectures/Lect12-14-376F08(Drosophila).pdf.


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. The notochord is a rod that extends most of the length of the body when it is fully developed. Lying dorsal to the gut but ventral to …

Molluscs and Annelids

Hello, Here are some study material for the topics about Molluscs and Annelids. And also an excerpt from Raven Biology Big thanks to http://bioserv.fiu.edu/~biolab/labs/1011/supplemental_materials/ and http://www.mhhe.com/biosci/genbio/raven6b/graphics/raven06b/other/raven06_45.pdf.