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

DoL Sect25.1 &25.2

Flatworms and Nematodes

What type of symmetry do flat worms have bilateral
Flatworms are acoelomate. What does this mean? flatworms do not have any body carvities
What organ do freeliving flatworms extend to release digestive enzymes to begin digestion of food particles? pharynx
What is the head of a tapeworm called? scolex
What are the sections of a tapeworm called? proglottids
What adaptation do tapeworms have that enable them to stay in the intestine tract of their host? their head region has little hooks to fasten the worm to the digestive tract
How do planaria reproduce? regeneration
Flatworms do not have a circulatory system nor a respiratory system. What adaptations do they have to accomplish the functions of those two systems? Their bodies are thin so diffusion can take care of those functions
What adaptation do free living flat worms have to handle excretion of body wastes that Cniderians and Sponges don't have? they have an excretory system
What are two different hosts the parasitic fluke Schistosoma have in their life cycle? humans and snails
How does a person contract a Schistosoma worm? Burrow into the feet of people wading in water that has the worm
Why doesn't a tapeworm have a digestive system? It doesn't need to digest its food since it lives where there is a ready supply of digested food.
What is the common name of nematodes? roundworm
What type of body cavity do nematodes have? pseudocoelomate
What is a pseudocoelom? Fluid filled body cavity between the mesoderm and endoderm.
What adaptation do nematodes have for movement? their pseudocoelom acts as a hydrostatic skeleton for their muscles to push against
What is different about the digestive tract of nematodes versus flatworms? Nematode digestive tract is one way. There is an entrance at one end and an exit at the other.
How do nematodes accomplish moving their nutrients throughout their bodies? diffusion
What disease is called by Trichinella worms? Trichinosis
How does a person contract a hook worm? going barefoot in warm climates (burrows up through foot)
How does a person contract an ascaris worm? From food that is not washed that contains the soil of subtropical and tropical regions
Where do female pinworms lay their eggs? in the skin around the anus of humans
What are two ecological relationships between nematodes and plants? Some nematodes are parasites of plants Some nematodes are used to control the spread of insect predators of plants
Created by: abolvin
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