The response is the digestive system!
The urchin's body cavity is predominantly occupied by the digestive system.
When stimulated, the stomach's environment is characterized as acidic. It secretes protease enzymes and hydrochloric acid to assist digestion. The hydrochloric acid keeps the pH low, enabling protease enzymes to effectively break down proteins. Following digestion, the stomach returns to its normal pH level. Therefore, acid secretion coincides with food presence to support proper digestion.
It is an independent variable.
Before preparing other sandwich ingredients, the food handler must wash their hands. Since handling tools while grilling the chicken inevitably touches the hands, sanitizing them afterwards is necessary. Wearing new gloves after washing provides an added layer of protection.
The proper response is "yes, yes, no" or "B, B, A".
Clarification:
In this hypothetical situation, an inhibitor obstructs the function of motor proteins in the kinetochore while still allowing the kinetochore to stay attached to the spindle. The animal cells treated with this inhibitor can elongate during mitosis, leading to the separation of sister chromatids, but the chromosomes will remain still instead of moving to the poles of the cell. The only action the inhibitor affects is the motor protein function, which is responsible for the movement of chromosomes to the poles during cell mitosis.