study of fruit fly genetics was done these creature are readily used for genetic studies .they are easy to maintain. And the females lay a lot off eggs which develop in about two weeks. Fruit fly’s have for distinct stages‚ the egg‚ larva‚ pupa and adult. the egg and larva stages last for eight days‚ the pupal stage last for six days and then the adult stage which last for many weeks this period of growth is called instars. In this lab a dihybrid cross was performed to get data results and to draw a
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* String * Graph paper * Stop watch Procedure: 1. Observe the length of a millimeter on a Metric ruler 2. Be completely silent for one minute to perceive the passage of time 3. Observe the movement of a mealworm (beetle larva). 4. Predict the number of millimeters the mealworm will crawl in one minute. 5. Place the mealworm on the white paper. 6. Using the pencil‚ trace the movement of the mealworm on the paper for one minute. 7. Return the mealworm to the
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Integrated Pest Management of palm oil Control of Oryctes rhinoceros Oryctes rhinoceros‚ as has been indicated in the section on zero burning‚ is a severe pest in such replants. A combination of fore-described cultural‚ chemical and biological control is now being used in an integrated manner to successfully manage outbreaks of the pest. Bagworms and Nettle Caterpillars Bagworms and nettle caterpillars are opportunistic pests that can devastate large areas of oil palm if not detected
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stages. Monarch butterfly undergoes a perfect complete metamorphosis process: egg‚ larva‚ pupa and adult (Bernstein‚ 1990). The process of metamorphosis is guided by genes. There are three hormones produced from the genes. First‚ Brain hormone which makes a gland in the thorax gives the second hormone (Molting hormone) which is completely depends on the third hormone (Juvenile hormone) which causes the molting of the larva when it presents in high amount. Each stage of the metamorphosis is specialized
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html) False. The infection with the adult tapeworm is caused by this. You get Cysticercosis is spread when pigs eat the feces of a human with the adult tapeworm and the eggs in the feces enter the pig and hatch. The larva can enter a human from eating undercooked meat of a pig with the larva and later turn in to cysts in the human gut. Cysticercosis causes damage when adult tapeworms accidentally lodge in organs other than the intestine. False. The tapeworm only lays the eggs. It does not cause
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weeks ( average) from egg to adult‚ the life cycle goes : Egg; 2 weeks‚ Larva; longer than a year‚ Pupa; 3 weeks‚ Adults; 30 days. The main target of the Adult firefly is to find a mate. They will do so by flashing their own unique light pattern which will hopefully attract a mate. However‚ sometimes the females will falsely attract a male‚ and when he arrives she will eat him. The buggy diet of a firefly is odd. The larva of a firefly eat the most as they need to fatten up to survive.The diet
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lay eggs. They usually cause little or no damage in dog‚ but the eggs passes out with the faeces and when eaten by intermediate host‚ mainly sheep‚ cattle‚ horses‚ pigs or humans. A larva hatches from the egg‚ penetrates the gut‚ and migrates to various tissues‚ especially liver‚ spleen‚ muscle‚ and brain. The larva of Echinococcus develops into a spherical fluid-filled cyst called a hydatid cyst. This cyst can reach 150mm in diameter‚ contains numerous secondary cysts (germinal epithelium) or broad
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indigenous to their country. For instance‚ the Japanese eat different kinds of larva‚ grasshoppers‚ and Japanese beetles. People in West Africa are known for eating termites‚ grasshoppers‚ crickets‚ and caterpillars. And the people of Thailand eat mealworms‚ and grasshoppers. Although these days eating insects isn’t very socially acceptable‚ entomophagy goes back centuries. The Romans and Greeks used to consider beetle larva and locusts a delicacy. Aristotle‚ a Greek philosopher and scientist‚ wrote
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BHS432 Module 2 – Case Assignment: Vectors and Pathogens Spring 2013 Question 1a: Describe differentiating characteristics between Dermacentor variabilis‚ Ixodes pacificus‚ and Ornithodoros hermsi ticks. Question 1b: Identify vectorborne diseases associated with these ticks‚ and describe the pathogens associated with these diseases. Question 1c: Describe preferred feeding locations of ticks. Question 2: Describe the effect of climate on vectors and vectorborne diseases. The western-blacklegged
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Echinoderms: Most species reproduce sexually‚ and species have separate sexes. Fertilization is external; the gametes are simply shed into the water at spawning time. The floating embryo develops into a ciliated‚ free-swimming‚ bilaterally symmetrical larva‚ which undergoes metamorphosis into the radially symmetrical adult. Examples: Sea Cucumber and Feather Star. Picture: Mollusks (Mollusca): The mollusk is a soft-bodied‚ usually shelled invertebrate belonging to one of the largest animal phyla
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