un/ 651/dev 505a1a10a0/5804 Search ols Help EARTHWORM SHOW LAB WORK QUESTION 3O
ID: 213101 • Letter: U
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un/ 651/dev 505a1a10a0/5804 Search ols Help EARTHWORM SHOW LAB WORK QUESTION 3O Select the answer choice that correctly fills in the blanks for this explanation of the muscle contractions that allow earthworm locomotion The worm alternates between extension and pulling the rest of its body after the extension. It extends the front of its body by contracting its circular muscles making itself It pulls the rest of its body by contracting its longitudinal muscles, making itself A short and fat; long and thin B long and thing short and fat long and fat; short and thin 9 "mood questons SAVE AHDFWSH LATER 0Explanation / Answer
The correct answer is 'B'.
Contraction of circular muscles makes earthworm longer and thinner as the pressure increases & force the liquid move outwards, that result in the stretching.
Contraction of longitudinal muscles makes the worm shorter and fat as coelomic liquid forms towards outside.
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