Factors Contributing to the Success of Insects Essay

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Factors Contributing to the Success of Insects

Insect, small, air-breathing animal characterized by a segmented body with three main parts—head, thorax, and abdomen. In their adult forms, insects typically have three pairs of legs, one pair of antennae, and in most instances, two pairs of wings. Insects rank among the most successful animals on Earth. About one million species of insects have been identified so far, which is about half of all the animals known to science. That is why for every pound of human on the earth there are 10 pounds of insects. So that is why there are many reasons why insects are so successful, their exoskeleton, their size, their body function, the way they reproduce, and their development of
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They can live in places that are too small for other animals, and where they can also find food and protection from enemies. Some insects live between the thin walls of a leaf. Some develop within a small seed or within the eggs of other insects. Because insects are small, they need little food. A crumb provides a banquet for an insect. Small organisms, such as insects, require fewer resources per individual than larger animals. Also of their protective color. An insect may be right before our eyes, but nearly invisible because it is cleverly camouflaged like a green leaf, lump of brown soil, gray lichen, a seed or some other natural object. Some insects use bright, bold colors to send warning signals that they taste bad, sting or squirt out poison. Others have wing patterns that look like the eyes of a huge predator, confusing their enemies. Some insects also mimic bitter-tasting insects; hungry foes are fooled into avoiding them.
Consequently, a given habitat, with finite resources, can support more small individuals than large individuals. Third, Like other animals, insects absorb nutrients from food, expel waste products via an excretory system, and take in oxygen from the air. Insect blood circulates nutrients and removes wastes from the body, but unlike most animals, insect blood plays little or no part in carrying oxygen through the body. Lacking the oxygen-carrying protein called hemoglobin that gives the blood of humans and many other

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