Class Notes (835,629)
Canada (509,297)
Zoology (236)
ZOO 2090 (90)
Lecture 2

lecture 2 zoo.docx

4 Pages
72 Views
Unlock Document

Department
Zoology
Course
ZOO 2090
Professor
Fred Laberge
Semester
Fall

Description
Lecture 2- the vert story 10/22/2013 7:31:00 PM Major vert innovations 1.Vertebral column  vertebrae replace the notochord for support  bone or cartilage blocks joined together 2. Head  prominent sensory organs + cranium  allowed anterior expansion into brain  derive from neural crest cells + ectodermal placodes 3. Jaw  suspension feeding prevertebrate deployed only cilia to produce the food- bearing current that enters the pharynx  Agnathan: early vertebrate lacking jaws 4. Limbs  fish fin axis curved around digits on posterior margin 5. Cleidoic egg  new membrane isolate embryo within fluid filled compartment in egg o amnion surrounding amniotic cavity  provide g
More Less

Related notes for ZOO 2090

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit