Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
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

Stack #1857052

QuestionAnswer
chordate The phylum whose members have a notochord, a nerve chord, and slits in their throat area some point in their lives.
notochord A flexible rod that supports a chordate back.
vertebra Small bones that make up the back bone.
ectotherm An animal whose body does not produce much internal heat.
endotherm An animal whose body controls and regulates its temperature by controlling the internal heat it produces.
fish ectothermic vertebrate that lives in the water and has fins.
cartilage Connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together.
swim bladder An internal, gas-filled organ that helps a bony fish stabilize its body at different water depth.
amphibian Ectothermic vertebrate that spends its early life in water and its adult life on land.
tadpole LArval form of a frog or a toad.
ventricle Lower chamber of the heart that pumps blood out to the lungs and body.
habitat Specific environment that provides the things an organism needs to live, grow, and reproduce.
reptile Ectothermic vertebrate that lays eggs and has lungs and scaly skin.
kidney Major organ of the excretory system that removes urea and other wastes from the blood.
amniotic egg An egg with a shell and internal membranes that keep the embryo moist.
bird Endothermic vertebrate that has feathers and a four-chambered heart, and lays egg.
crop A birds internal storage pouch that allows it to store food inside its body after swallowing it.
gizzard A muscular, thick-walled part of a birds stomach that squeezes and grinds partially digested food.
mammal An endothermic vertebrate with a four-chambered heart, skin covered with fur or hair, and young fed with milk from the mothers body.
mammary gland An organ in female mammals that produces milk for the mammals young.
monotreme A mammal that lays eggs.
marsupial A mammal that lays eggs.
gestation period The length of time between fertilization and birth of a mammal.
placental mammal A mammal that develops inside it's mothers body until its body system can function independently.
Created by: barreironataly