The ____ regulates the movement of food into the stomach and the ____ regulates the passage of food
into the small intestine.
a. epiglottis; gastroesophageal sphincter
b. epiglottis; pyloric sphincter
c. gastroesophageal sphincter; epiglottis
d. gastroesophageal sphincter; pyloric sphincter
e. pyloric sphincter; anal sphincter
D
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Molecules such as H?H and O=O are held together by ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
Pollen contains that produce .
A. gametophytes; sperm B. sporophytes; sperm C. gametophytes; spores D. sperm; spores E. sporophytes; spores
Amollusk with multiple arms for locomotion and grabbing prey is a
A. gastropod. B. cephalopod. C. bivalve. D. chiton. E. fluke.
Which of the following modes of action would not be fungicidal
a. inhibition of peptidoglycan synthesis b. inhibition of mitosis c. injury to the plasma membrane d. inhibition of nucleic acid synthesis