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Insects
Beginning of essay
are neumerout invertebrate animals that belong in the Phylum Arthropoda
and Class Insecta. The class Insecta is divided into 2 subclasses: Apterygota,
or wingless , and Pterygota, or winged . Subclass Pterygota is
futher divided on basis of metamorphosis. that have undergone incomplete
metamorph ....
Middle of essay .... stomach
where it is digested, then the undigested parts and wastes are moved to the
intestine, colon then released at the anus. And in the reproductive system, a
new individual is produced sexually when the female eggs produced in the ovaries
united with male sperm produced in the testes.
Both man and insect live almost everywhere, eat all kinds of food, and use all
kinds of materials to build homes so they constantly live in conflict. Some
insects seriously affect man's health and are parasi.... |
Number of words: 458 |
Approximate pages: 2 |
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