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Worksheets25.1-25.2 Flatworms and Roundworms
Total questions: 12
Worksheet time: 6mins
Flatworms tend to be smooth and dry.
False
True
Roundworms reproduce sexually.
True
False
Free-living flatworms reproduce asexually by regeneration.
True
False
Flame cells move water and nutrients from the body of a flatworm.
True
False
Flatworms are pseudocoelomates, meaning they lack an internal body cavity.
True
Flase
Which is true of both flatworms and roundworms?
They both have radial symmetry.
They both have bilateral symmetry.
they are both acoelomates.
They are both pseudocoelomates.
Heartworms are found in many cats and dogs. What type of worm is a heartworm?
ascarid
pinworm
filarial
hookworm
How do humans usually contract trichinosis?
eating undercooked pork
eating unwashed vegatables
swimming in contaminated water
receiving a mosquito bite
Why are certain nematodes useful in controlling animal pests?
they are competitors
they are symbionts
they are predators
they are parasites
Which characteristics makes rotifers different from roundworms?
have bilateral symmetry
have rings of cilia
are pseudocoelomates
live in freshwater habitats
Which structures are only found in parasitic flatworms?
pharynx
eyespots
hooks and suckers
ganglia
By which mechanism are hookworms transmitted?
eating contaminated meat
drinking contaminated water
not washing their hands
going barefoot in contaminated soil
