5.某本植物學教科書在描述種子萌發的條件時,有下列這段文字:「As a result of desiccation, metabolism within the seed decreases to an almost imperceptible(不可察覺的)level, allowing the embryo to remain viable for long periods. Following desiccation, the seeds of some plants then enter a quiescent (“resting”) state; those of other plants become dormant.」文中提到種子萌發之前可能的二 種狀況,分別是靜止(quiescent)與休眠(dormant)。請問靜止與休眠的定義分別為何?(4分)