WorksheetsNematoda, Playhelminthes,
Total questions: 20
Worksheet time: 40mins
What is cephalization?
Having male and female parts at the posterior end of the body..
A concentration of sense organs and nervous system at the anterior end of the body.
Feeding off of another organism either as a parasite or carnivore.
Exchanging gases through a thin, moist layer of skin.
Which of the following is a structure related to excretion in worms?
Ganglia
Gizzard
Nephridia
Crop
What type of skeleton do all Annelids have?
hydrostatic
endoskeleton
exoskeleton
Flatworms evolved from the simpler animals...
Porifera (sponges)
Nematoda (roundworms)
Cnidaria (Jellyfish and Coral)
Annelida (Segmented Worms)
What is the benefit of flatworms being flat?
Easier to hide from predators
Helps food and oxygen reach all body parts
Lowest energy form of movement
Allows them to stick to the ocean floor
Select ALL options below that are involved in flatworm movement
Muscles
Cilia
Slime
Miniature limbs
Platyhelminthes are the animal group that are more commonly called
Flatworms
Roundworms
Segmented worms
This term encompasses all worm types
This type of parasitic roundworm is contracted after consuming undercooked pork products.
Trichinosis
Planarian
Schistosomiasis
Tapeworm
Parasitic worm you can contract from walking on contaminated soil.
Hookworm
Tapeworm
Guinea worm
Planarian
This parasitic worm produces a burning blister where it can exit the host.
Hookworm
Tapeworm
Guinea worm
Planarian
Many species of this phylum parasitize plants and animals.
Platyhelminthes
Nematoda
Annelida
Their body is elongated, cylindrical, unsegmented, bilaterally symmetrical, and tapering at both ends.
flatworms
roundworms
annelids
