The digestive sac of a jellyfish has ________ opening(s) .
A) one
B) two
C) three
D) four
Correct Answer:
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Q3: The main function of salivary amylase is
Q4: Which of the following is the usual
Q5: The esophagus and trachea are both open
Q5: Spiders are _.
A)herbivores
B)filter feeders
C)carnivores
D)omnivores
Q6: When contracted,_ prevents movement of chyme from
Q8: A food ball moves through the esophagus
Q9: The stomach mixes food with the secretions
Q11: Which of the following choices lists the
Q14: Which of the following is an example
Q20: Digestion begins in the _.
A)oral cavity
B)esophagus
C)pharynx
D)stomach
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