Save
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

BJU Biology - Ch 18

BJU Biology 4th edition - Chapter 18

TermDefinition
air sac One of a series of hollow chambers connected to the respiratory system of birds.
albumen The white of an egg.
bipedalism The characteristic of walking upright on two legs.
blowhole The single breathing opening on the dorsal surface of the head of a cetacean.
cecum A pouch of the digestive system that helps some herbivores digest plant material.
cloaca The terminal portion of the digestive tract in certain vertebrates that serves as a common passageway for the elimination of urine and feces.
courtship Animal behavior that promotes mate selection and breeding.
crop A portion of the digestive tract that temporarily stores food.
cud In ruminants, partially digested food regurgitated from the rumen for additional chewing to aid in digestion.
diaphragm The muscle that separates the thoracic and abdominal cavities in mammals and man.
estrus The period when a female mammal is ovulating and receptive to mating.
feather One of the proteinaceous structures that covers birds and enables flight.
gestation The period of pregnancy.
gizzard A thick-walled digestive organ that grinds food.
larynx The short passageway that leads from the pharynx to the trachea; the sound-producing organ; the voice box.
mammal A member of the class Mammalia.
mammary gland Organ of female mammals and humans that produces milk to nourish the young.
marsupial A mammal that possesses a marsupium; a pouched mammal.
monotreme A mammal that reproduces by laying eggs.
opposable thumb A digit able to be placed opposite the other digits (fingers or toes).
placenta In animals and humans, the structure that consists of a portion of the uterine wall and chorion of the embryo; allows nutrient and waste exchange between mother and embryo.
prehensile tail A tail that can be flexed and is used for gripping or holding things.
rumen The first of four chambers of the stomach of a ruminant.
syrinx The song box of a bird.
The song box of a bird. A hoofed mammal.
uterus A reproductive organ for storing ova until they are fertilized or laid; the womb; in most mammals and in humans, the organ in which the embro develops.
Created by: marchscience
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