What is the order of evolution of the various groups of insects?

Insect reproductive methods can be divided into different types from different perspectives. According to the individual reproduction, it can be divided into monosomy reproduction and disomatic reproduction, the former includes hermaphroditic autofertilization and parthenogenesis, and the latter includes hermaphroditic reproduction and hermaphroditic allogeneic fertilization; According to the fertilization mechanism, it can be divided into hermaphroditic reproduction and parthenogenesis; According to the number of offspring, it can be divided into single embryonic reproduction and polyembryonic reproduction, the former only produces one offspring with one egg, and the latter can produce more than two offspring with one egg. According to the state of the offspring, it can be divided into oviparous and viviparous, the offspring of the former leave the mother with eggs, and the offspring of the latter leave the mother with nymphs or larvae; According to the state of the insect that can reproduce, it is divided into adult reproduction and juvenile reproduction.

Insects are the largest group in the animal kingdom, and they play a very important role in biodiversity in terms of the number of individuals, organisms, species and genes. The relationship between insects and humans is complex and close, some insects have caused great disasters to humans, and some species have provided rich resources for humans.

Generally speaking, it can be divided into, 1Eggs, 2Larvae, 3Adults, 4Pupa, 5Butterflies or moths, which then lay eggs and eventually die.

The emphasis on the morphological characteristics of insects is a characteristic of the adult stage, because the larvae and adults of insects are not the same nature. Its larvae may be eggs or larvae, and adults may be the ones that can fly. Butterflies and stuff like that.

When mentioning the morphological characteristics of insects, the characteristics of the adult stage are emphasized, because the load-bearing period is of research value.

Why is the emphasis on the characteristics of the adult stage when referring to the morphological characteristics of the class Insecta? You should be asking about biology, I don't know too much, you can ask about the relevant majors, they should know.

In the case of current insects, the characteristics of the course period and the characteristics of the adult are things that need to be emphasized.

When referring to the morphological characteristics of insect steel, it is the characteristics of the load-bearing device that are emphasized, because the load-bearing device plays a major role at this stage.

Why is it important to emphasize the shock trait of survival when mentioning the morphology of insects, this ultimate trait is because some birds can fly or something, you look for books on this subject to see if it is the result you want.

Why is the emphasis on the characteristics of the adult stage when referring to the morphological characteristics of the class Insecta? Why is the emphasis on the characteristics of the adult stage when referring to the morphological characteristics of the class Insecta?

What is mentioned in the morphology of the class of insects really emphasizes that each insect characteristic is different.