After the episode of apnea, breathing may be faster (hyperpnea) for a period of time, a compensatory mechanism to blow off retained waste gases and absorb more oxygen.
Traditional cultivars and landraces are often more useful to gardeners because they crop over a longer period of time, avoiding gluts and food shortages.
Traditional participant observation is usually undertaken over an extended period of time, ranging from several months to many years, and even generations.