Section 4
Questions 31-33
What are the THREE WAYS in which turbellaria differ from other flatworms, according to Dr Baker?
A they are not parasitic
B 80% of their nutrition comes from platyhelminths
C they have a simpler structure
D they’re less intelligent
E they have eyes
F their sensory system is more elaborate
G their sensory organs are chemical
Questions 34-38
Complete the sentences below.
Write NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.
34 Turbellaria are able to thanks to the structure of their bodies.
35 Any part of a turbellarian’s body that isn’t occupied by organs is filled with a .
36 While turbellaria are hermaphrodites, they don’t .
37 Most turbellaria’s natural habitat is .
38 Turbellaria expel all undigested food from their .
Questions 39, 40
Choose the correct letter, A, B or C.
39 Fission is the ability of
A two worms to grow out of one if you split it in the middle.
B flatworms to procreate by breaking into smaller flatworms.
C flatworms to regenerate organs they’ve lost.
40 Fission in flatworms is an important phenomenon for scientists because
A it might help them find a way to do the same to human cells.
B it has been found to put a break on the human aging process.
C it technically means that flatworms can live forever.
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