. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. ISO ANIMAL ACTIVITIES. IMII 121. — A Worm's Setae. (c) A cross-section of one segment to show the setae X 6. Taking Food. The earthworm has neither hard mouth-parts for biting food nor a tube for sucking. Its mouth is simply a hole bounded by fleshy lips. The segment in front of the mouth forms a sort of proboscis or elongated upper lip which is used to push the food Fig. 121. —a Worm's into the mouth. The food con- sists of fallen leaves or any organic matter found in or around its bur- row. Decaying vegetable matter for
. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. ISO ANIMAL ACTIVITIES. IMII 121. — A Worm's Setae. (c) A cross-section of one segment to show the setae X 6. Taking Food. The earthworm has neither hard mouth-parts for biting food nor a tube for sucking. Its mouth is simply a hole bounded by fleshy lips. The segment in front of the mouth forms a sort of proboscis or elongated upper lip which is used to push the food Fig. 121. —a Worm's into the mouth. The food con- sists of fallen leaves or any organic matter found in or around its bur- row. Decaying vegetable matter forms the greater part of its food, and if it cannot get decayed leaves it can pour out of the mouth a fluid which makes the leaf decay and blacken at once. Since the worm gets much of its food beneath the surface of the earth, it builds a burrow for its home. Such a burrow is a plain hole usually slanting from the surface down to a depth of four or five feet, always extending below the frost of winter. At the bottom of this hole is a small round room carefully lined with stones or seeds. In making this burrow the worm not only eats the vegetable matter. Fig. 122.—^Worm-casts. in the ground but swallows the earth as fast as he excavates it, thus mixing his food with loam. Nutrition. The worm has no teeth and no jaws; so his food passes down the gullet or oesophagus to an enlargement of the alimentary canal called the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original French, Nathaniel Stowers, 1854-. New York [etc. etc. ] Longmans, Green and Co
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecta, booksubjectzoology
