Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
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

Chordates & Fish

A section in the Vertebrate Study Guide

What 3 characteristics are all shared by chordates at some point in their life? Notochord; Nerve cord; Gill slits
What does the nerve cord end up developing into? Brain
What is the controversy with gill slits? What is the alternate name for them now? Great controversy that humans/mammals don’t actually have “gills” but pharyngeal clefts that develop into something else; pharyngeal slits.
What type of skeleton do vertebrates have? endoskeleton
What is the purpose of the skeleton? support & protect the internal organs
What are ectotherms? What is another name for ectotherms? body temperature changes as surroundings change; cold-blooded animals
What are endotherms? What is another name for endotherms? body temperature doesn’t change as surroundings do; warm-blooded animals
What is the largest group of vertebrates? fish
What are gills? fleshy filaments where CO2and oxygen are exchanged.
What are the 3 types of fish? Give an example of each. Bony fish-goldfish; jawless fish-lamprey; cartilaginous fish-shark
What is cartilage? tough, flexible tissue similar to bone but not as hard or brittle.
What is the swim bladder? air sac that helps control the depth at which the fish swims
What happens as gases move in and out of the swim bladder? Deflates & inflates as gases move between the swim bladder & blood. Fills with glassfish rises and vice versa
What is the purpose for fins? Steering the fish
What do jawless fish have? scale-less, long, tube-like bodies; Round, muscular mouth without a jaw
What are the cartilaginous fish made of? cartilage
What are most cartilaginous fish? predators
Created by: GwendolynetheOC
Popular Biology sets




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