Class Notes (838,987)
Canada (511,153)
Biology (1,911)
BIOL 1070 (204)
Lecture 3

BIO Week 3- LEC 5

2 Pages
Unlock Document

BIOL 1070
Wright& Newmaster

BIO Week 3- LEC 5 Specialization, Extinction and Speciation Anatomy of a Mussel  Divided into three major parts: Visera, muscular foot and mantle  Molluscs all have a mantle o The phylum all have similar parts but the different classes have more disparity  Cephalopods- squids, octopus  Bivalves- scallops, clams and oysters Mantle: folding of the body wall that lines shell; secretes shell substance (shell made up of calcium carbonate) Mantle Cavity: houses gills- important for respiration and digestion Adaptation is the evolutionary change over thousands of generations, enhances survival and reproduction through natural selection. “Co-option” of a functional tissue into a new additional function. Ex. Mantle  complex lure  Not all simple lures go into a complex lure  If one of the host species for a mussel became extinct,  On average, species persist for about 4 million years (or about 25% go extinct ever
More Less

Related notes for BIOL 1070

Log In


Join OneClass

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

Sign up

Join to view


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.