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Biology

Biology
The organs of the urinary system are

Kidney
All of these
Urinary bladder
Ureter

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Biology
Which of the following may cause the breakdown of pyruvate into lactic acid in our muscles?

Lack of Oxygen
Lack of water
Lack of nitrogen
Lack of carbon dioxide

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Biology
When the diaphragm and external intercostal muscles contract,

The volume of the thorax increases
The volume of the lungs decreases
The volume of the thorax decreases
The lungs shrink

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Biology
Enzymes are produced by

Liver
Spleen
Endocrine glands
Exocrine glands

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Biology
In what organelle does cellular respiration take place?

Ribosomes
None of these
Mitochondria
Cytoplasm

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Biology
Which is the Largest Organ in the Human Body?

Liver
Skin
Brain
Heart

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