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Common Characteristics of All Insects
Definitions of insect bites: Many effects of metazoal parstism are attributed to bites. some metazoa (worms with a loose head) do actually bite and other insects. The reason for the bite
The orders with the largest numbers of species are: Coleoptera (beetles), Lepidoptera (butterflies and moths), Hymenoptera (insects, bees, wasps), and Diptera (true flies). Common characteristics of insects
Insects have what is called an exoskeleton or hard, shell-like covering on the outside of their body: They have three main body parts: head, thorax, and abdomen. They have two antennae on top of their heads. Insects have two legs. Facts About Insects and Bugs: Moths have ears on their wings so they can avoid bats.
King caterpillars shed their skin four times before they become chrysalis, growing to over 2700 times their original size.
There may be as many as 3,000 different types of insects – more than all other animals and plants combined.
Of the large number of insects, only a small amount, one percent, is harmful to humans. Most insects are not harmful or actually beneficial. For example, without bees to pollinate flowers, plants would have no way of reproduction and we would have nothing to eat!
Locusts can eat their own weight in food in a day. A person weighs about half a year.
Why are insects so successful?
Of all the creatures on earth, insects are the main consumers of plants… We believe that insects are successful because they have a protective shell or exoskeleton, they are small, they can fly. Their small size and ability to fly permits escape from enemies and disperse to new areas.
Insects on plants are useful for humans.
Insect pests are corn rootworm beetle, Japanese beetle, Mexican bean beetle and grasshoppers. Late-season lepidopteran insects such as corn earworms, western cutworm and European corn can damage ears and pods. Insect pests like Japanese beetles can create opportunities for fungal infection or rot.
Insects are important components of many ecosystems, where they perform many important functions. They aerate the soil, pollinate blossoms, and control insects and plant pests… As decomposers, insects help create topsoil, the nutrient-rich layer of soil that helps plants grow.
some insects are considered pests because they are harmful to humans or other animals. One reason why insects can be harmful is because some can bite, bite, or even spread disease… In addition, some of the most dangerous diseases are spread by insects.
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