What role do insects play in everyday life

Insect species account for more than four-fifths of the biological species in nature, and the species species species far exceed plants and microorganisms, and insects have many unique properties that can be used in medicine, such as flies that are covered with bacteria but do not get sick. It can be said that, like the discovery of penicillin, a major revolution in pharmacology in the 21st century may have been produced in insects.

Insects can induce and produce antibiotics (antibacterial proteins, antimicrobial peptides, lysozyme, defensins, etc.), these antibacterial substances have a strong bactericidal effect and a wide range of antibacterial, and the molecular weight is small, the physical and chemical properties are stable, and can also be introduced into plants through transgenic engineering to breed resistant varieties of diseases and insects, and can also be industrialized through genetic engineering, cell engineering and fermentation engineering to produce insect antibacterial substances to make genetic drugs.

Insect toxins also have a broad application prospect in medicine, according to statistics, there are more than 700 kinds of insect species with toxins, and more than 60 kinds of insect toxins. Bee venom is used for rheumatoid arthritis, lupus erythematosus, vasculitis, hypertension and other diseases; Cantharidin has obvious anti-cancer effects, and ants, cockroaches, etc. have high medicinal value. In the 21st century, insect toxins will be widely used in medicine, using biochemical technology to study the composition, structure and pharmacology of insect toxins, and then extract synthetic or biotechnology to produce pharmaceutical insect toxins, and apply them to clinical practice.

Mainly medicinal insects.

a) Chinese honey bee.

b) Vespa c) Ants.

4) Praying mantis 5) Termites.

6) Ground turtle insects.

7) Cockroach 8) Pantharids (attached: turnips, kudzu pavilions, and ground urchins) 9) Insects 10) Dung beetles.

11) Mulberry insects.

12) Grubs.

xiii) Mole crickets.

14) Crickets.

15) Grasshopper.

16) Red Lady (attached: Chicken).

xvii) Gallnut.

XVIII) Insect ash.

19) Flies.

20) Big-headed fly.

21) Nine spice worms.

22) Silkworms.

xxiii) Yellow thorn moth.

XXIV) Xanthus.

xx5) Cordyceps.

xxvi) Cordyceps militaris.

Leech: through menstruation and blood circulation, it is commonly used to treat the sequelae of hemiplegia.

Dilong: Through menstruation and blood activation, the medicinal properties are slightly weaker than leeches.

Whole scorpion: calm the liver and calm the wind, cure the wind.

Seahorse: Relaxes muscles and activates the nerves, treats falls and sprains.

You can **** sick fish!

What is this phenomenon? What are the roles in everyday life?

There are 50 kinds of common insects: bees, wasps, dragonflies, flies, mosquitoes, gadflies, butterflies, walking insects, cockroaches, mole crickets, ground tigers, larvae of cicadas, opossum bugs, field turtles, turtle bugs, scratching bugs, stone moths, mayflies, fleas, lice, etc.

Insects are of great variety and morphology, belonging to the arthropods of invertebrates, and are the most abundant animal group on the planet, accounting for more than 50% of all biological species (including bacteria, fungi, and viruses), and their traces are found in almost every corner of the world.

Until the beginning of the 21st century, there were more than 1 million species of insects known to humans, but there are still many species yet to be discovered. Insects are the most diverse and abundant in the animal kingdom and have a significant impact on agricultural production and human health. The most common are locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches, etc.

Not only are there many species of insects, but the number of individuals of the same species is also staggering. The distribution of insects is so wide that no other class of animals can compare with it, and it is almost all over the earth. There are different types.

Most insects can be used as specimens, and they are a good biological resource that humans can use.

Before the advent of humans, insects had a long-standing relationship with the flora and fauna in their surroundings. After the emergence of human beings, in the process of transforming and using nature, they have also formed a complex and close relationship with insects. According to the economic and health views of human beings, insects can be divided into two categories: "beneficial insects" and "pests".

Insects that directly or indirectly endanger human health or cause harm to human economic interests are collectively referred to as pests; Otherwise, it is called a beneficial insect. However, the benefits and harms of insects to humans are only relative, not static.

insect scale diagram; According to statistics, there are about 10,000 kinds of common agricultural pests and about 400 species of forest pests. Although there are not many dominant species of agricultural and forestry pests, the economic losses caused are very huge. fao：

Five crops (rice, wheat, cotton, maize, sugarcane) are lost more than $200 billion annually to pests worldwide. United States: The annual loss due to disease, insects, grasses and rodents accounts for about 1 3 of the total agricultural output value of jujube branches; In 1974, more than $45 billion was lost to insect pests.

China: The loss of insect bench cleavage accounts for more than 1 5 percent of crop output value; In 1992, the cotton output was reduced by 1 3 due to cotton bollworm, and the direct loss was 10 billion yuan.

The locust plague in Chinese history is appalling, with an average outbreak every 35 years, and more than 800 locust plagues occurred in 707 and 1949.

1. Nesting: Some insects can form their own nests individually or collectively, such as ants, bees, etc.

2. Flight: Some insects give birth to wings in order to protect themselves or hunt, such as dragonflies, flies, etc.

3. Swimming: Some insects can survive in the water in order to protect their offspring, such as pricking bugs, scorpion bugs, etc.

4. Webs: Some insects will spin silk webs in order to hunt or grow on their own, such as silkworms, spiders, etc.

5. Concealment: Some insects can integrate into the environment in order to protect themselves, such as stick insects, orchids, butterflies, etc.

Classification of insects: 1. Coleoptera: It is the first order in the class of insects, commonly known as "beetle".

There are more than 330,000 species, and their forewings are angular and hard, and they have no wing veins, which are called "elytra", hence the name. The exoskeleton is well developed and the body is hard, so it is able to protect internal organs. The body shape changes greatly.

Such insects are highly adaptable.

2. Lepidoptera: Named because of the large number of scales on the body and wings.

3. Diptera: Diptera is divided into three suborders: long-horned, short-horned and annulus.

4. Hymenoptera: Hymenoptera includes various ants and bees. The characteristics of Hymenoptera Kunzhong are obvious, including chewing and sucking mouthparts, and the connection of the front and rear wings is completed by wing hooks.

Insects play an important role in ecosystems, and here are some of the main ones:

1.Pollination and pollination: Many plants rely on insect pollination to reproduce. When insects feed on plant nectar or pollen, they spread pollen from flower to flower, promoting pollination and reproduction. This is essential for the health and diversity of plant ecosystems.

2.Biological defense: Some insects play a role in biological control against the natural enemies of other pests or pathogenic bacteria. They feed on other insects or pests to help maintain their natural balance and reduce the number of pests and nuclei.

3.Decomposition and decay: Jujube insects are the key link in decomposition and decay. They feed on decaying plant and animal matter, breaking down organic matter and converting it into nutrients that can be re-entered into the ecosystem.

4.An important part of the food chain: Insects are an important part of many food chains and food webs. They serve as food** for other creatures, including birds, bats, reptiles, fish, etc.

5.Soil improvement: Some insects, such as earthworms and stag defences, contribute to the improvement of soil structure and quality through their excreta and their activities, promoting soil aeration and water retention.

In general, insects play an important role in ecosystems, maintaining biodiversity, ecological balance, and ecosystem functioning.

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