The Digestive and Excretory Systems Answers
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The picture represents the excretory system.
A
nephronB
ureterC
bladderD
urethra2
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Which plays both a role in physical and chemical digestion?
A
teethB
salivaC
gall bladderD
villi3
In which part of the digestive system does a chemical change of the food first occur?
A
mouthB
esophagusC
stomachD
liver4
Which are structures of the excretory system? Select four options.kidneyspleenbladderesophagusureterurethra
A
kidneyB
spleenC
bladderD
esophagusE
ureterF
urethra5
Which occurs during digestion?
A
The mouth only allows for physical digestion.B
The mouth only allows for chemical digestion.C
Chemical digestion prepares the food for physical digestion.D
Physical digestion prepares the food for chemical digestion.6
Which statement best describes the breakdown of food in the digestive system?
A
Carbohydrate digestion starts in the stomach and protein digestion starts in the stomach.B
Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.C
Carbohydrate digestion starts in the esophagus and protein digestion starts in the small intestine.D
Carbohydrate digestion starts in the small intestine and protein digestion starts in the esophagus.7
Which is the role of the gall bladder?
A
to provide physical digestionB
to store the liquid produced by the liverC
to make the liquid that is stored in the liverD
to decrease the chemical digestion8
The diagram shows a nephron.
A
WB
XC
YD
Z9
Which shows the best connection between the digestive and excretory systems?
A
The digestive system fuels the cells and the excretory system rids the body of the cells’ waste.B
The digestive system rids the body of the cells’ waste and the excretory system fuels the cells.C
The digestive system does physical digestion while the excretory system carries out chemical digestion.D
The digestive system carries out chemical digestion while the excretory system does physical digestion.10
Once the teeth start grinding food, is produced to make food moist and slippery.
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