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

Lecture 10

Animal Traits, Sponges & Cnidarians

Heterotrophs Cannot make their own food so they must ingest food.
Parazoa Lacks tissue(s).
Eumatazoa Has tissue(s).
Endoderm Innermost layer of tissue in an animal embryo.
Ectoderm Outermost layer of tissue in an animal embryo.
Mesoderm The layer that occurs between the two layers, ectoderm and endoderm.
Spicules The middle layer of cells in the sponge secrete these to create a fibrous skeleton.
Polyp Body shape of Cnidarians that is attached to something and where the mouth is pointing upward.
Medusa Body shape of Cnidarians that is unattached and floating and where the mouth is pointing downward.
Nematocyst Cnidarians can paralyze their prey with a toxin located at the tip of this.
Hermaphrodites Most sponges are this where they produce both the sperm and the eggs.
Protostomes First opening is the mouth.
Deuterostomes First opening is the anus.
Radial Jellyfishes have this type of symmetry.
Bilateral Humans and insects have this type of symmetry.
Asymmetrical Sponges have this type of symmetry.
Created by: bngrimes1995
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