According to the report, the cost of installing sprinkler systems to the home builder averaged $1.61 per sprinklered square foot. Sprinklered square feet is the total area of spaces with sprinklers. The cost of sprinkler systems to the home builder, in dollars per sprinklered square foot, rangedfrom $0.38 to $3.66.
A reflexive verb is a verb that has an object which is the same as the subject of the verb ==> the action of the reflexive verb is something one is doing to or for oneself. Some verbs are reflexive all or most of the time, others are only reflexive when used in certain ways.
The difference is that a reflex is a typically a simple reaction or a response to an environmental trigger whereas an instinct is a much complex set of behaviors. For instance, an example of a reflex would be when a baby turns his head toward an object that is pressed against one cheek in an effort to nurse.