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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

biology 27/28

neural crest group of cells that develops from the embryo ectoderm and contributes to the development of many vertebrate structures
pedicellaria small pincher that helps echinoderms catch food and remove foreign materials from the skin
operculum movable protective flap that covers a fishes gills and helps to pump water that enters the mouth and moves over the gills
swim bladder gas filled internal space in bony fishes that allows them to regulate their buoyancy
tympanic membrane eardrum
ventricle he heart chamber that pumps blood from the heart to the gills or lungs
lateral line system sensory receptors that enable fishes to detect vibrations or sound waves in water
tetrapod our footed animal with legs that have feet and toes with joints
spawning process by which male and female fish release their gametes near each other in the water
atrium heart chamber that receives blood from the body
ectotherm animal that cannot regulate its body temperature through its metabolism and obtains its body heat from the external environment
water vascular system system of fluid filled closed tubes that allow echinoderms to control movement and get food
madreporite strainer like opening through which water enters the water vascular system in most echinoderms
ampulla in echinoderms the muscular sac that contracts to force water into the tube feet 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
cartilage flexible tough material that makes up vertebrate skeletons or parts of vertebrate skeletons
postanal tail chordate structure used primarily for locomotion
scale small flat platelike structure near the surface of the skin of most fish can be ctenoid cycloid placoid or genoid
invertebrate chordate chordate without a backbone
dorsal tubular nerve cord tube shaped chordate nerve chord located above the digestive organs
tube feet one of the muscular small fluid filled tubes with suction cuplike ends that enable echinoderms to move and collect food
pharyngeal pouch in chordate embryos one of the paired structures connecting the muscular tube lining the mouth cavity and the esophagus
fin paddle shaped structure of a fish another aquatic animal used for steering balance and propulsion
notochord flexible rodlike structure extending the length of the chordate body enabling the body to bend and make side to side movement
cloaca the chamber that receives digestive waste urinary waste and eggs or sperm before they leave the body
nephron filtering unit of the kidney
Created by: eeveelover2000



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:
restart all cards