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Detemination Key
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Detemination Key …..Use simple dichotomous keys based on ……
easily identification Features ….. BOTH PLANT, ANIMAL AND …. ….. THE OTHER ORGANISM
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Detemination Key The simple Determine Key to find the order of insects is as follows. 1.a. Wingless insect …………………………………………………. 2 b. Winged insect …………………………………………………. 3 2. a. Insect is in the form of worm or maggot………………………insect larva b. Number of legs 3 pairs, has no prologs………………………..Apterygota 3. a. Wings have not developd perfectly …………………………… insect nimfa b. Wings are perfect …………………………………………….. 4 4. a. Front wings are not transparent,wings nerves are visible…….. Orthoptera b. Front wings are not like above ………………………………… 5 5. a. Front wings are hard, without wings nerves ………………….. Coleoptera b. Front wings are not like above ………………………………… 6 6. a. Front wings are thick at front, thin and back, mouth Piercing and sucking ………………………………………….. Hemiptera
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Detemination Key b. Front wings are not like above ……………………………. … 7
7.a. Front wings may have different color from backwings Or transparans,wing nerves are visible or wingless, mouth piercing and sucking ………………………………………….. Homoptera b. Front wings are not like above ………………………………… 8 8. a. Front wings are parallel and short, back part of abdomen has a clamp …………………………………………………… Dermoptera b. Front wings are not like above ………………………………. 9 9. a. Front wings and back wings are almost the same size, Has many nerves, was pterostima, eyes a large, antenna is invisible ( short ) …………………………………………… Ordonata b. front wings are not like above ………………………………….. 10
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Detemination Key Example : Working Step
Look for various kinds of insects at least 5, such grasshopper, houseflies, cokrouch, ant and dragonfly Observe one by one the kinds of insects, match the characteristics observed to the characteristic in the determine key - After its order is found, move to observe another insect until thr order of all of insects is found
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