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Answer:
Bolus is the food that is mashed up in your mouth. After it is digested in the stomach, the food is called chyme. Bolus is more alkaline than chyme because it is exposed to alkaline saliva.
Explanation:
Answer:
the relative frequency of an allele at a particular locus in population
Explanation:
Its A. it prevents sperm from reaching the egg and fertilizing it.
