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insect

File:Insects_-_Neoptera_-_Paleoptera_-_Apterygota.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ1390· pop 220· linked from 214,765 articles

Also known as Insecta, insects, bugs, bug

thumb|Insects live in a world of motion. This Acanthocephala terminalis|leaf-footed bug climbs windblown grass and flies off.

AI overview

Insects are small animals that live in environments full of movement, like climbing on grass and flying through the air. They matter because they are an abundant and active part of the natural world, interacting constantly with their surroundings and other living things.

AI-generated from the Wikipedia summary — may contain errors.

Species

insects

Class

  1. PhylumArthropoda
  2. ClassInsecta
Habitatmarine, brackish, freshwater
Observations22,734

注意:本页面含有Unihan扩展A区用字:「䖵、䗛」。有关字符可能會错误显示,詳见Unicode扩展汉字。 昆虫在分类学上属于昆虫纲(学名:Insecta),是世界上最繁盛的动物,已发现超過100万种。其中單鞘翅目(Coleoptera)中所含的種數就比其它所有動物界中的種數還多。昆字原作䖵。 昆虫的构造有异于脊椎动物,它们的身体并没有内骨骼的支持,外裹一层由几丁质(英文 chitin)构成的壳。这层壳会分节以利于运动,犹如骑士的甲胄。昆虫的身體會分為頭、胸、腹三節,有六隻腿,複眼及一對觸角。昆虫有脂肪體,成分類似脊椎動物的脂肪組織,但作用不同,主要為代謝功能,類似脊椎動物的肝。 昆虫對生態扮演着很非常重要的角色。虫媒花需要得到昆虫的帮助,才能传播花粉。而蜜蜂采集的蜂蜜,也是人们喜欢的食品之一。昆蟲是蜥蜴、青蛙、小型鳥類的重要食物來源。在东南亚和南美的一些地方,昆虫本身就是当地人的食品。 但昆虫也可能對人類產生威脅,如蝗虫會破壞農作物,白蟻破壞木材及建築物。而有一些昆虫,例如蚊子,还是疾病的传播者。 有一些昆蟲能夠藉由毒液或是叮咬會對人類造成傷害,例如虎頭蜂在有人入侵地盤時會以螫針注入毒液等。紅火蟻會分泌有毒物質使接觸動物及人類出現敏感症狀甚至致命。

via

Nutrition · Open Food Facts

Typical values per 100 g · averaged across 8 products

cNutri-Score
4NOVA · Ultra-processed food
Browse on Open Food Facts →

via Open Food Facts · ODbL

Research

453,227 papers

via PubMed

Wikidata facts

Image
Insekter.jpg
Show 7 more facts
Commons category
Insecta
taxon name
Insecta
Commons gallery
Insecta
taxon common name
昆蟲綱
start time
400000000-
IPA transcription
ɪnˈsɛktə
Sources (11)

via Wikidata · CC0

~49 min read

Article

54 sections
Contents
  • Etymology
  • Insects and other "bugs"
  • Distinguishing features
  • Diversity
  • Distribution and habitats
  • Phylogeny and evolution
  • External phylogeny
  • Internal phylogeny
  • Taxonomy
  • Early
  • Modern
  • Evolutionary history
  • Morphology and physiology
  • External
  • Three-part body
  • Segmentation
  • Exoskeleton
  • Internal systems
  • Nervous
  • Digestive
  • Reproductive
  • Respiratory
  • Circulatory
  • Sensory
  • Reproduction and development
  • Life-cycles
  • Metamorphosis
  • Communication
  • Light production
  • Sound production
  • Chemical communication
  • Social behavior
  • Care of young
  • Locomotion
  • Flight
  • Walking
  • Swimming
  • Ecology
  • Defense
  • Pollination
  • Parasitism
  • Relationship to humans
  • As pests
  • In beneficial roles
  • Population declines
  • In research
  • As food
  • In other products
  • In religion and folklore
  • See also
  • Notes
  • References
  • Sources
  • External links

thumb|Insects live in a world of motion. This Acanthocephala terminalis|leaf-footed bug climbs windblown grass and flies off.

Insects (from Latin ') are hexapod invertebrates of the class Insecta'''. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and a pair of antennae. Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species.

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