es posses much more beauty and interest than their reputation credits them with. Most of them are marked with concealing colors and patterns, browns,… - Ann Haven Morgan

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es posses much more beauty and interest than their reputation credits them with. Most of them are marked with concealing colors and patterns, browns, greens, and blacks, picturing upon them the broken shadows and water-soaked leaves of their natural background and hiding them in it. They are sensitive to the slightest vibration of the water, to shadows passing over them, and to small changes in the water around them. Their whole set up is one of exquisite efficiency for their mode of living. … The external features most essential to a leech are the strong muscular suckers at each end of its body and the sucking mouth which which may or may not be armed with jaws … Leeches are segmented worms like bristleworms and common earthworms and belong to the Phylum .

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About Ann Haven Morgan

(May 6, 1882 – June 5, 1966) was an American , zoologist, conservationist, and educational reformer, advocating equal educational opportunities for women. She received in 1912 her Ph.D. from Cornell University and became in 1918 a full professor at . She was mentored by . In 1920 Morgan was elected a Fellow of the .

Also Known As

Birth Name: Anna Haven Morgan
Alternative Names: A. H. Morgan Ann Morgan Anna H. Morgan
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... The two problems which face every organism are those of maintaining its own life and continuing its race. Its youth is devoted entirely to satisfying its individual needs for food and safety; its adult life is devoted to the race, but the necessities of the individual are still satisfied though they may be secured in an entirely different way. The immature life of is aquatic, and to it all adjustments concerned with food or safety are exclusively confined. The mature or adult life is aerial. It is solely devoted to reproduction. There is no provision for food or for other means of lengthening its life. It gives an opportunity for studying ways of getting a living which have been completely isolated from ways of reproducing.

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