To Know a Fly |
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Page 44
Page 51
... fly's body except the head . There was a separate depression for the head , but it was purposely placed too far in front of the first depression . A fly was now made to lie prone in the big depression and was held there with a strip of ...
... fly's body except the head . There was a separate depression for the head , but it was purposely placed too far in front of the first depression . A fly was now made to lie prone in the big depression and was held there with a strip of ...
Page 69
... fly's eggs cannot proceed to com- pletion without protein any more than a hen's egg can be packaged in a shell by a hen that lacks calcium in her diet . After the eggs are fully developed , the fly switches her preferences from protein ...
... fly's eggs cannot proceed to com- pletion without protein any more than a hen's egg can be packaged in a shell by a hen that lacks calcium in her diet . After the eggs are fully developed , the fly switches her preferences from protein ...
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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