蝴蝶演变过程英语作文 The butterfly is holometabolous insects, its life has four distinct developmental stages: ( 1) 、the egg stage ( embryonic period ). ( 2) 、the larval stage ( growth period ). ( 3) 、the pupal stage ( period ). ( 4) 、the adult stage ( sexual period ). After three stages of development are collectively referred to as the postembryonic development. The four developmental stages of the body, from the morphological point of view, nothing in common. Therefore, must pass through the system or continuous observation, can understand it is a species of four developmental stages. 翻译: 蝴蝶是全代谢物昆虫,其生命有四个不同的发育阶段: (1)、卵期(胚胎期)。 (2)、幼虫期(生长期)。 (3)、蛹期。 (4)、成年期(性期)。 经过三个阶段的发育统称为胚后发育。从形态学角度看,身体的四个发育阶段没有任何共同之处。 因此,必须通过系统或连续的观察,才能了解它是一个物种的四个发育阶段。 本文来源:https://www.wddqw.com/doc/b456fcd39d3143323968011ca300a6c30c22f11c.html