Answer:
b. Pharyngeal transport phase
Explanation:
During the pharyngeal phase, the vocal folds close to keep food and liquids from entering the airway.
Catalyst maybe ( lower activation energy).
The purpose of an enzyme is to allow the cell to carry out chemical reactions very quickly
The most logic answer is B.
Answer:
for a hypothesis to be part of an accepted theory, it must have been extensively tested through experiments under different conditions
