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

Apologia Biology 11

Apologia Biology Module # 11

QuestionAnswer
Invertebrates Animals that lack a backbone
vertebrates Animals that possess a backbone
Spherical symmetry an organism possess spherical symmetry if it can be cut into two identical halves by any cut that runs through the organism's center
Radial Symmetry an organism possess radial symmetry if it can be cut into two identical halves by any longitudinal cut through its center
Bilateral Symmetry an organism possess bilateral symmetry if it can only be cut into two identical halves by a single longitudinal cut along its center which divides it into right and left halves
epidermis an outer layer of cells designed to provide protection
mesenchyme the jellylike substance that separates the epidermis from the inner cells in a sponge
collar cells flagellated cells that push water through a sponge
amoebocytes cells that move using pseudopods and perform different functions in different animals
gemmule a cluster of cells encased ina a hard, spicule-reinforced shell
polyp the sessile, tubuluar form of cnidarians with a mouth and tentacles at one end and a basal disk at the other
medusa a free-swimming cnidarian with a bell shaped body and tentacles
epithelium animal tissue consisting of one or more layers of cells that have only one free surface, because the other surface adheres to a membrane or other surface
mesoglea the jellylike substance that separates the epithelial cells in a cnidarian
nematocysts small capsules that contain a toxin which is injected into prey or predators
testes organs that produce sperm
ovaries organs that produce eggs
anterior end the end of an animal that contains its head
posterior end the end of an animal that contains its tail
circulatory system a system designed to transport food and other necessary substances throughout a creature's body
nervous system a system of sensitive cells that respond to stimuli such as sound, touch, and taste
ganglia masses of nerve cell bodies
hermaphroditic possessing both the male and female reproductive organs
Created by: Kids3
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