How does broccoli avoid self pollination?

Self pollinators are plants that produce flowers that are usually fertilized by their own pollen, commonly when the male and female flower parts are contained within the same flower.

But preventing self-fertilization is to have the pollen shed before of after the period during which the stigmas on the same plant are receptive.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

registered nurse (rn): the rn is responsible for carrying out both the medical plan of care prescribed by the physician as well as the nursing care plan developed by the nursing staff. the rn assesses each resident and modifies the nursing care as needed to meet the patient's needs.