Study Guides (248,639)
United States (123,471)
BIOL 1002 (57)
All (40)
Midterm

Biol 1002 Ch 24 Test 3 (Got A+ on the test)

4 Pages
52 Views

Department
Biological Sciences
Course Code
BIOL 1002
Professor
All

This preview shows page 1. Sign up to view the full 4 pages of the document.
Description
Chapter 24 The ChordatesThe last group of animals features four new characteristicsNerve cordLies above the digestive tract on the upper dorsal portion of body unlike other animals Fig 2311Becomes thick at one end anterior that will become the brainNotocordA stiff but flexible rod running the length of the body between the digestive tract and nerve cordProvides support but in many its only present in early development until skeleton takes over Gill slitsIn some slits form gillsIn others only present in early embryonic developmentTailsPosterior extension that continues past the anusFigure 242The organisms with these and other features are theChordatesPhylum Chordata3 CladesTunicatesLancelets figure 243Craniates almost all are vertebratesOther features of the ChordatesCephalizationSegmentation reduced but presentClosed circulatory system Excretory systemWelldeveloped nervous systemIncludes groups that haveNo skeletoninvertebrate Fig 241Few elements of cartilage jawless fish Hagfish Lack jawsGrind and tear food wtonguelike structure wteethNo bertebral column backbone
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

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