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.

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

Ch15 Vertebrates

Endothermic Vertebrates

Birds endothermic animals with feathers & hollow bones
clutch a group of eggs
contour feathers strong, lightweight feathers that give the bird flight and shape
down feathers soft, fluffy, insulating layer of feathers
preening when a bird rubs oil over its feathers and cleans the feathers.
mammals endothermic animals with hair/fur and produce milk to feed & care for their young.
mammary glands produce milk for feeding the young
monotremes mammals that have fur but lay eggs with leathery shells
marsupials mammals that give birth to immature young that crawl into a pouch to finish developing
placentals mammals that give birth to live, completely developed young
gestation period the time it takes for the embryo to develop inside the uterus
placentals embryos that completely develop inside the female's uterus
placenta an organ that the embryo develops inside of
umbilical cord cord that transports food & oxygen from the placenta to the embryo
embryo developing baby inside the female.
Created by: hubblep