Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

QuestionAnswer
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