How did pasteur solve spallanzani’s problem of limiting exposure to air?

Pasteur solved Spallanzani’s problem of limiting exposure to air by using a flask with bent neck which allowed air to pass but did not allow microorganisms which are present in the air to reach the broth.

Pasteur was a scientist who was a pioneer of the process of pasteurization, in which we prevent liquids most importantly milk is heated to prevent spoiling due to bacteria.

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explanation:

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the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.