Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


WCHS Zoology Chapter 17

tornaria the ciliated larval stage of an acorn worm; class Enteropneusta, phylum Hemichordata
notochord a rodlike, supportive structure that runs along the dorsal midline of all larval chordates and many adult chordates
pharyngeal slits one of several openings in the pharyngeal region of chordates, they allow water to pass from the pharynx to the outside of the body; in the process, water passes over gills or suspended food is removed in a filter-feeding mechanism
tubular nerve cord a hollow nerve cord that runs middorsally along the back of chordates, one of four unique chordated characteristics; also called the neural tube, and in vertebrates, the spinal cord
postanal tail a tail that extends posterior to the anus, one of the four unique characteristics of chordates
endostyle a ciliated tract within the pharynx of some chordates that is used in forming mucus for filter feeding
Created by: dmoudy