Since this is not my area of expertise, I searched Google under the key words "embryology invertebrates evolution" to get this:
http://www.google.com/search?client=safari&rls=en&q=embryology+invertebrates+evolution&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
What do you think the embryological steps we see in the early development of the invertebrates tells us about evolutionary history? How did those steps evolve? Please use specific examples and be prepared to defend your answer.
1 answer