Insects 4


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Insects 4

  1. 1. Insects Living Things Classification Structure s Life Cycles Benefits NextSlide 2
  2. 2. Common Insects Unusual Insects Living Things Insects Next
  3. 3. Classification Kingdom - Animal Phylum - Arthropoda Class - Insecta Order - Living Things Insects Next Thysamura Diplura Portura Collembola Ephemeroptera Odonata Plecoptera Grylloblattodea Orthoptera Phadmida Dermaptera Embioptera Dictyoptera Isoptera Zoraptera Psocoptera Mallophaga Siphunculata Hemiptera Thysanoptera Neuroptera Coleoptera Strepsiptera Mecoptera Siphonaptera Diptera Lepidoptera Trichoptera
  4. 4. Structures of Insects Antennae ___ Compound Eye ___ Mandibles ______ Head |------------------| Thorax |------------------------| Abdomen |--------------------------------| ______ Jointed Legs ______ In addition to the common structures shown below, some insect varieties have wings that are attached to the thorax an extend over the abdomen. Living Things Insects Next
  5. 5. Structures of Winged Insects Living Things Insects Next
  6. 6. Structures of Insects Flies eat solid food by secreting saliva on to the food item. The food is dissolved by the saliva and is slurped up into the mouth through the proboscis. Other insects like butterflies and bees use their proboscis to draw in nutrients too. Some insects like this housefly have developed mouth parts for sucking. They usually have some form of mandible, but it is much less developed than those insects who chew to eat. Click on photo for video . Living Things Insects Next
  7. 7. Structures of Insects We have our skeleton inside of our body ( endoskeleton ), but insects have theirs on the outside. This format for body support is called an exoskeleton and has been very successful for them, but their "skeleton" cannot grow. Insects shed their skeletons several times in their lifetime, when they have grown too big for their "skins". Living Things Insects Next
  8. 8. Insect Life Cycle Although, some insect are born alive, most are hatched from eggs. Once leaving the egg stage insects live as a larva investing most of their time gathering nutrients to survive the pupa stage. As a pupa, the insect goes through a metamorphosis, a physiological change, into a mature or adult insect. We are most familiar with the adult forms of insects. Living Things Insects Next
  9. 9. Life Cycles Click on the photo to view video. Living Things Insects Next
  10. 10. Benefits of Insects Foods. Honey is certainly high on the list of products made by insects that may be consumed by humans. Some insects are eaten as novelties in the United States, but some other societies use beetle grubs and other insects commonly as food. Natural and biological control . The balance of nature depends on the activities of parasites and predators, the majority of which are species of insects. Researchers use this concept in biological control, and have been dramatically successful in many programs. Living Things Insects Next
  11. 11. Benefits of Insects Pollination . The value of pollination of plants by insects is nearly incalculable. Honeybees are clearly among the most important of pollinators, and their efforts result in an estimated 80 percent of all pollination in the United States. Living Things Insects Next
  12. 12. Silk Production Benefits of Insects Silk Production Living Things Insects Next
  13. 13. Benefits of Insects <ul><li>Products (examples). </li></ul><ul><li>Lac. This is a product from Lac Scale insects, Laccifer lacca. Lac is an important ingredient of many items, including floor polishes, shoe polishes, insulators, various sealants, printing inks, and varnish. </li></ul><ul><li>2. Beeswax. Britain alone imports 1 million pounds of beeswax, which can be used as a base for ointments, polishes, and candle making. Forty percent of all beeswax is used in cosmetic manufacture for lotions, creams, and lipsticks. </li></ul><ul><li>3. Dyes. Many species of scale insects provide dyes that are used in many products, including cosmetics and for coloring cakes, medicines and beverages. Tannin is a dye that is gained from insect galls and is used in the tanning of hides and in the production of permanent durable inks. There are other galls that produce dyes. </li></ul>Living Things Insects Next
  14. 14. Citations Ant graphic: archives/ants-insects photo.jpg&imgrefurl= archives/2008/10/to_jurors_do_yo.html&usg= __lN4iKi6A8FsOFRlvZ9IlCObv68o=&h=350&w=450&sz=12&hl=en&start= 7&itbs=1&tbnid=kKlsDGKUGPiHyM:&tbnh=99&tbnw=127&prev= /images%3Fq%3Dinsects%252Bpictures%26hl%3Den%26safe%3 Dactive%26gbv%3D2%26tbs%3Disch:1 Ant identification chart: _house_ant.gif Life cycle diagram: Living Things Insects Next
  15. 15. Housefly Insects Photographs (misc.) Benefits of Insects Note – text for slides10,11,13 are taken from the source below. Living Things Insects Next