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  • Question 1
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    A colony of honey bees affected by CCD (note the small number of adult workers relative to a large amount of unhatched brood that forms the waxy cells in the hive frame. Frames 1 and 3 are most greatly affected).
    In 2007, a significant proportion of American beekeepers complained of unusually large losses of bee populations from their overwintering levels in late 2006. Loss of some colonies (approximately 10%) in early spring is normal and occurs every year. The problem was also reported by beekeepers in Europe, and researchers do not understand the specific causes of these losses.
    At present, the syndrome is mysterious given that the main symptom is simply a low number of adult bees in the hive. There are no dead bodies and despite the fact that the affected colonies do co-exist with many disease organisms, no external signs of disease, pests or parasites seem to exist.
    Honey bee queens mate on the wing with 10-30 drones (both wild and domesticated varieties) and, as a result of genetic recombination, the broods produced have high genetic variability. Honey bee colonies, including workers, drones and the queen typically comprise a large number of related animals that live at high densities. Diseases of many kinds, including perhaps the cause(s) of CCD, are a constant threat to colony welfare.
    Which of the following factors does not plausibly increase the risk of colonies to disease?

  • Question 2
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    A typical hive contains approximately 20,000 bees classified as either the female queen (n=1), male drones (n=20), and workers (the balance of the hives population). The queen's primary function is to mate with drones and lay the eggs that give rise to the following generation, whereas the worker bees fulfill all day-to-day functions of the hive, including foraging, guarding the nest, tending to the drones and to the queen in addition to constructing the hive.
    The European honey bee, Apis mellifera, is capable of producing an inhibitory signal, the stop signal, which can be triggered by encounters with dangerous conditions or organisms. This stop signal reduces recruitment of other foragers to a dangerous location. For example, A . mellifera foragers produce stop signals to inhibit waggle dancing for dangerous food sources.
    A stop signal is a 300 - 400 Hz vibrational signal with a duration of approximately 150 mts that a worker usually delivers while butting its head into the body of the receiver, causing the receiver to momentarily freeze. Attacks by wasps and spiders (among other predators) elicit stop signals, which inhibit waggle dancing. However, stop signals are also used in other inhibitory contexts that are not associated with danger.
    Each of the following activities plausibly stimulate foraging inhibition and contribute to the overall success of the colony except

  • Question 3
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    Giriraja is a

  • Question 4
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    Single cell protein produced from one of the following microbes is rich in methionine

  • Question 5
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    A colony of honey bees affected by CCD (note the small number of adult workers relative to a large amount of unhatched brood that forms the waxy cells in the hive frame. Frames 1 and 3 are most greatly affected).
    In 2007, a significant proportion of American beekeepers complained of unusually large losses of bee populations from their overwintering levels in late 2006. Loss of some colonies (approximately 10%) in early spring is normal and occurs every year. The problem was also reported by beekeepers in Europe, and researchers do not understand the specific causes of these losses.
    At present, the syndrome is mysterious given that the main symptom is simply a low number of adult bees in the hive. There are no dead bodies, and despite the fact that the affected colonies do co-exist with many disease organisms, no external signs of disease, pests or parasites seem to exist.
    Which of the following claims and evidence most plausibly explain the cause of CCD?

  • Question 6
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    Which of the following nutrients are added to improve fish culture? 

  • Question 7
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     Wax glands in honey bees are present on these segments.

  • Question 8
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    Which one of the following is a step in processing of Kipps and Buffs?

  • Question 9
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    Orange super bananas is a common food produced by biofortification are common in areas where 

  • Question 10
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    Peacomb is one of the important breed character of 

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