To Know a Fly |
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Page 47
... fly to sugar increased nearly ten million - fold from the time he was fed until one hundred hours after feeding . In other words , as he became hungrier he would respond to more and more dilute sugar so his sensitivity was a good ...
... fly to sugar increased nearly ten million - fold from the time he was fed until one hundred hours after feeding . In other words , as he became hungrier he would respond to more and more dilute sugar so his sensitivity was a good ...
Page 48
... flies . But what is hunger ? The possibility occurred to us that the difference between a hungry fly and a fed fly was the amount of sugar in its blood . The first way to tackle this question was to meas- ure the blood - sugar levels of a ...
... flies . But what is hunger ? The possibility occurred to us that the difference between a hungry fly and a fed fly was the amount of sugar in its blood . The first way to tackle this question was to meas- ure the blood - sugar levels of a ...
Page 49
... flies were surgically joined together back to back so that they shared a common blood supply . One fly was then fed and both subsequently tested for sensitivity to sugar to determine how hungry they were . The fed fly was satiated ; his ...
... flies were surgically joined together back to back so that they shared a common blood supply . One fly was then fed and both subsequently tested for sensitivity to sugar to determine how hungry they were . The fed fly was satiated ; his ...
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able activity amount animal ants appearance become bees behavior Bill Clark biologist blood body brain called caterpillars caused cells Chapter continued course creature dance drink drop eggs eight eventually example experiment experimental eyes fact feathers feeding feet female flies fluid fly's follow glucose hair hand head honeybee human hunger hungry insects interest jump kind known laboratory learning least legs less light live look lower males matter means mechanism merely MICHIGAN minute move nature nerve never observation odor once operation organ performed person piece prefer present problem proboscis protein question reach reason record removed result salt scientific scientist seen sense sensitive serve side simple stops student sugar supply taste thing tion trail tube turn understanding usually walk wings