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<p>To learn more about arthropods, look at the previous page.</p> <p>The Class Insecta of the Arthropoda Phylum is by far the most successful and diverse taxon on planet Earth. In fact, there are more species of insect than any other species combined. This surely illustrates that insects have particular selective advantages that allow them to take the most advantage of the environment that they live in.</p> <p>The development of insects was a stamping of authority by animals species on life developing at the time. </p> <p>Insects possess all the selective advantages of the arthropods mentioned on the previous page plus their own unique advantages with each species of them. Here are some reasons as to why insects enjoyed their continued existence over such a long period of time (beginning over 400 million years ago).</p> <ul><li>An Ability to Fly (Class Pterygota)<br><br>Since some insects developed wings, they could easily escape from predators and travel large distances without any danger in the form of other animals in the air. The more primitive insects, most likely the first insects are wingless, thus this suggests that flying was a natural selective advantage at the time and has continued to be for many insect species. </li> <li>Small Stature<br><br>Insects would develop respiratory complications if they grew to an abnormal size. In light of this, the wide range of insect species are small in size, meaning they can occupy small areas and require a small amount of food in order for them to survive </li> <li>Fast Reproductive Cycle<br><br>A general rule of thumb in biology is that smaller organisms produce offspring faster, and as organisms of the time reproduced sexually, this meant that the crossing of genetic information was more frequent. This in turn meant that variation in the genome of the species increased as a whole, and thus continued to diversify and compete </li> </ul><h2>Land Insects</h2> <p>Just like the other arthropods, took the opportunity to occupy dry land, and thus evolved to cater for their new environment. Evolutionary adaptations mapped out in insect species points out the minimum water transpired by the organisms, illustrating their relatively audacious transition from a wet environment to dry land.</p> <p>Insects also occupy the sea, though face stiffer competition from the continuous evolution that was happening there with other species, creating environmental pressure and an occupational threshold of habitats.</p> <h2>Senses</h2> <p>Insects continued to evolve the sense developed by other arthropods and their ancestors, and were capable of interpreting auditory, visual and chemical stimuli. </p> <h2>The Symbiosis of Plants and Insects</h2> <p>Over the evolutionary timeline we have followed, although plants have not been mentioned much, insects were heavily dependent on plant life. Both insects and plants have co-evolved with one another, and if you had removed one of them at any point in history, scores of species would have never existed in today's world.</p> <p>Insects and plants used one another in a variety of ways</p> <ol><li>Butterflies undergo a process called metamorphosis, which is a transition from embryonic to adult form of a species. In the case of the butterfly, adults hatch eggs within plants to camouflage them against potential damage and predators who may eat the eggs. </li> <li>In other cases, insects are herbivores, and thus eat plants as a means of nutrition. In reverse instances, plants like the Venus Fly Trap engulf insects within their defensive mechanisms and kill them<br></li> <li>Insects pollinate plants, providing a way for plants to create offspring and successfully pass their genome through the generations </li> </ol><p>Alias, plants and insects have always had a close relationships in evolution</p> <h2>Social Habits</h2> <p>Some species of insects are capable of communicating with one another. This would be one of the first instances of this in the evolutionary chain, and remarkably happening hundreds of millions of years ago. Bees are an example of a social insect, who perform a waggle dance in front of fellow bees from the same hive to indicate the quality and navigational source of a food supply.</p> <p>Indeed, insects were an important factor in life's transition from water to land.</p>
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