Curdling of milk is a chemical change, what is the contributing factor for its change? *
1 point
a. presence of oxygen
b. absence of oxygen
c. high temperature
1 point
a. presence of oxygen
b. absence of oxygen
c. high temperature
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Answer:
b. absence of oxygen
Explanation:
Organisms that grow in the absence of free oxygen are termed anaerobes; those that grow only in the absence of oxygen are obligate, or strict, anaerobes. Some species, called facultative anaerobes, are able to grow either with or without free oxygen.