Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

ch 27 vocab

vocabulary

TermDefinition
pedicellaria small pincers that aid in catching food and in removing foreign materials from the skin.
water-vascular system a system of fluid-filled, closed tubes that work together to enable echinoderms to move and get food.
madreporite the strainer like opening to the water-vascular system.
tube foot small, muscular, fluid-filled tubes that end in suction-cup like structures and are used in movement, food collection, and respiration.
ampulla in echinoderms, the muscular sac that contracts to force water into the tube foot, allowing it to extend.
chordate animal of the phylum chordata having a dorsal tubular nerve cord, a notochord, pharyngeal pouches, and a postanal tail at some point in its development.
invertebrate chordate chordate without a backbone.
notochord flexible, rodlike structure extending the length of the chordate body, enabling the body to bend and make side-to-side movements.
postanal tail chordate structure used primarily for locomotion.
dorsal tubular nerve cord tube-shaped chordate nerve cord located above the digestive organs.
pharyngeal pouch in chordate embryos, one of the paired structures connecting the muscular tube lining the mouth cavity and the esophagus.
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards