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1
Place in order the four phases of food use in animals.
I: Digestion
II: Elimination
III: Ingestion
IV: Absorption
A)III: I: II: IV
B)IV: III: I: II
C)II: III: IV: I
D)III: I: IV: II
E)IV: III: II: I
2
An animal that has a strong preference for one type of food, but can adjust its diet if necessary, is most accurately referred to as
A)opportunistic.
B)scavengers.
C)predatory.
D)frugivores.
E)omnivorous.
3
Which of the following statements about digestion and absorption is incorrect?
A)Although some simple invertebrates can perform intracellular digestion, most digestion occurs extracellularly.
B)Vitamins and minerals require digestion.
C)A different type of enzyme is required to digest each of the four classes of macromolecules.
D)Products of digestion can be absorbed by either diffusion or active transport across plasma membranes.
E)All of the statements about digestion and absorption are correct.
4
True or False: Ruminents have complex stomachs and a cecum in order to utilize microbes as an aid in the digestion of cellulose.
A)True
B)False
5
True or False: Starch digestion in humans begins in the mouth due to the action of salivary amylase.
A)True
B)False
6
Which of the following tissue types plays a role in regulation of digestion?
A)Muscular tissue
B)Nervous tissue
C)Epithelial tissue
D)Muscular tissue and nervous tissue
E)Muscular tissue, nervous tissue, and epithelial tissue
7
Which of the following common gastrointestinal disorders is caused by an influx of stomach into the esophagus?
A)Diarrhea
B)Ulcers
C)Heartburn
D)Stomach cancer
E)Constipation





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