Talk about the concepts and differences between complete metamorphosis and metamorphosis.

Refers to a series of significant changes in the morphological structure and living habits of animals during the late embryonic development. Larvae is very different from adults, and the changed morphology appears in a short time. This postembryonic development is called metamorphosis. Metamorphic development generally refers to the development mode of Insecta and Amphibia. The metamorphosis of amphibians goes through four stages, such as frogs: fertilized eggs-tadpoles-young frogs-adult frogs, in which the fundamental difference between young frogs and adult frogs is the way of breathing. Larvae breathe through gills, adults breathe through lungs, and skin can also assist breathing. The metamorphosis of Insecta is different from that of Amphibia, because their metamorphosis is divided into complete metamorphosis and incomplete metamorphosis. The metamorphosis of moths, butterflies and flies begins with fertilized eggs and goes through four stages: larva, pupa and adult. Moreover, the difference between larvae and adults is obvious, and such metamorphosis is called complete metamorphosis. There are mosquitoes, flies, cabbage butterflies, bees and so on. The development of some insects goes through three stages: egg, larva and adult, and the difference between larva and adult is not obvious. This development process is called incomplete metamorphosis. Such as cicadas, crickets, grasshoppers, crickets, etc. Metamorphic development refers to amphibians, and the morphological structure and function of larvae and adults have changed greatly during the development. Both complete metamorphosis and incomplete metamorphosis refer to the complete metamorphosis of insects: the development process goes through four stages: egg, larva, pupa and adult, and the morphological structure and physiological functions of larvae are significantly different from those of adults. For example: flies, bees, silkworms, etc. Incomplete metamorphosis: individual development only goes through three stages: egg, nymph and adult, and there is little difference in morphological structure and physiological function between larvae and adults. For example: cockroaches, locusts and so on. The development of some insects goes through four stages: fertilized egg, larva, pupa and adult, and the difference between larva and adult is obvious. This development process is called complete transformation. Such as mosquitoes, flies, cabbage butterflies, bees and so on. It should be noted that not all fertilized eggs, such as bees, eggs laid by queen bees, fertilized and unfertilized, and unfertilized can also be transformed into drones in the process of complete metamorphosis. This quotation is from the second book of biology in the eighth grade. The fertilized eggs develop into worker bees, those who eat queen bee honey develop into queen bees, those who don't eat them develop into worker bees, and those who don't fertilize develop into drones, and the drones mate with the queen bees.