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Benefits of Insect

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Submitted By zephyr07
Words 1153
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Benavidez, Daryl Adrienne B.
1. Define Entomology. a. "Entomology is the study of insects." -P.J. Gullan and P.S. Cranston, 2010 b. "Entomology (from Greek ἔντομος, entomos, "that which is cut in pieces or engraved/segmented", hence "insect"; and -λογία, -logia[1]) is the scientific study of insects, a branch of arthropodology."
2. List down five branches of branches of entomology and describe it. a. Ecology and Behaviour - Ecology is the scientific study of interactions among organisms and their environment, such as the interactions organisms have with each other and with their abiotic environment while behaviour can be regarded as any action of an organism that changes its relationship to its environment. Behavior provides outputs from the organism to the environment. b. Taxonomy- It is the study of classification. Classification of insects and their relatives is also part in studying entomology. Classifications are tools that gives names for groups of species that serves as an easy way for communicating information about those species. c. Anatomy and Physiology- This is the study of the internal and external body parts of an organism where it is discussed anatomically (where it is found) and physiologically (what is its purpose). This is very important in studying entomology because throughout the class, the parts of insects will be described and pointed out. The anatomical and physiological properties of the insects' body parts will be tackled too. d. Biochemistry- is the study of chemical processes within and relating to living organisms. e. Genetics - is the study of genes, heredity, and variation in living organisms.[1][2] It is generally considered a field of biology, but it intersects frequently with many of the life sciences and is strongly linked with the study of information systems.
3. Briefly recall the experiment using insects as basis for the Abiogenesis Theory. In 1837, Andrew Crosse reported to the London electrical Society concerning the accidental spontaneous generation of life in the form of Acurus genus insects while he was conducting experiments on the formation of artificial crystals by means of prolonged exposure to weak electric current. Throughout numerous strict experiments under a wide variety of conditions utterly inimical to life as we know it, the insects continued to manifest. The great Michael Faraday also reported to the Royal Institute that he had replicated the experiment. Soon afterwards, all notice of this phenomenon ceased to be reported, and the matter has not been resolved since then. While examining with a microscope a thick plate of mica from Siberia, about 5 inches long and 3 inches wide, Sir David was surprised to observe the remains of minute animals, some the 70th of an inch, and others only the 150th of an inch in size. Some of these were enclosed in cavities, round which the films of mica were in optical contact. These acari were, of course, not fossil, but must have insinuated themselves through openings between the plates of mica, which afterwards closed over.

4. How do you know that such organisms are called insects? Give 5 examples of insects. * Insects' skeleton is found outside (exoskeleton), or upside down * Nerve cords extends along the lower side of the body and the heart lies above the alimentary canal. * They have no lungs and breath in the many microscopic holes in their body wall * Most insects are relatively small and ranging from about 0.25 to 330 mm in length and 0.5 to 300 mm in wingspread. * They are the only invertebrates with wings * They range in color from drab to brilliant * Insects are coldblooded creatures 1. Butterfly 2. Fruit Fly 3. Spider 4. Beetle 5. Grasshopper
5. What are the benefits of having insects around us? a. Medicine Insects also help us in discovering new medicines that helps in curing diseases in humans. For example, Blister Beetles can cause serious blistering to human skin, the chemical they secrete from their joints - called "Cantharidin" - is, ironically, used in some wart removal products. b. Agriculture "A great many insects are extremely valuable to humans, and society could not exist in its present form without them. By their pollinating activities, they make possible for the production of many agricultural crops, including orchard fruits, nuts, clovers, vegetables, and cotton; they provide us with honey, beeswax, silk, and other products for commercial value." - CA Triplehorn and NF Johnson, 2005 c. Food "Probably, 1000 or more species of insects in more than 370 genera and 90 families are or have been used for food somewhere in the world, especially in central and southern Africa, Asia, Australia, and Latin America. Food insects generally feed on either living or dead plant matter, and chemically protected species are avoided. termites, crickets, grasshoppers, locusts, beetles, ants, bee brood and moth larvae are frequently consumed insects. Although insects are high in protein, energy, and various vitamins and minerals, and can form 5 - 10% of the annual animal protein consumed by certain indigenous peoples. Western society essentially overlooks entomological cuisine." -P.J. Gullan and P.S. Cranston, 2010 "They serve as food for many birds, fish, and other beneficial animals." -- CA Triplehorn and NF Johnson, 2005 20 “‘All flying insects that walk on all fours are to be regarded as unclean by you. 21 There are, however, some flying insects that walk on all fours that you may eat: those that have jointed legs for hopping on the ground. 22 Of these you may eat any kind of locust, katydid, cricket or grasshopper.23 But all other flying insects that have four legs you are to regard as unclean." -Leviticus 11: 20-23 d. Biological Control "They perform valuable services as scavengers; They help keep harmful animals and plants in check." - CA Triplehorn and NF Johnson, 2005 e. Education and Research Insects can be helpful in our education too. One example is the entomology class. It adds to the knowledge of students about their course and insects can be used as their samples, subjects and topic for research. 6. What are the detrimental effects of having insects around us? Give particular insects that are detrimental. "A few insects are harmful and cause enormous losses each year in agricultural crops and stored products, and some insects transmit diseases that seriously affects the health of humans and animals." - CA Triplehorn and NF Johnson, 2005 Examples of these insects: 1. Locusts - eat agricultural plants plants 2. Caterpillars- eat plants and destroy fruit crops 3. Mosquitoes- causes dengue fever, West Nile disease and malaria 4. Tick- Babesiosis, Tick-borne encephalitis, Heartland virus disease, Lyme disease, and Rickettsial diseases, 5. Sandfly - Leishmaniasis
References:
Borror and Delong's Introduction to the Study of Insects, 7th edition, 2005 The Insects: An outline of Entomology, 4th edition, 2010 Leviticus 11: 20-23, Moses http://en.wikipedia.org/wiki/Entomology http://en.wikipedia.org/wiki/List_of_diseases_caused_by_insects Name: Benavidez, Daryl Adrienne B. ID number: 2040862 Cellphone number: 09357571265 Class: Entomology TTh 7:00 - 8:30 Professsor: Ferdinand A. Esplana

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