The Fish With the Minuter Animals of the Ocean
The Fish With the Minuter Animals of the Ocean
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In our eReader you can find the full English version of the book. Read The Fish With the Minuter Animals of the Ocean Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Fish With the Minuter Animals of the Ocean
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It is in the fine blood-vessels of the fringe of the gills that the blood is acted upon by the oxygen of the water, and from the gills it is car- ried to the general system. Fishes are endowed with much less vitality than warm-blooded ani- mals, respiring simply through the medium of CIRCULATION OF BLOOD IN FISHES. 15 water ; in other words, only availing themselves of the small quantity of oxygen which is contained in the air mixed with water.
The number of aquatic respirations in fishes is be...tween twenty and thirty in a minute ; and the surface of the gills over which the blood is distributed, that the water may act upon it, is surprisingly great. It has been calculated that the gills of a large skate present a surface equal to 2, 250 square inches, or about the whole exter- nal surface of the human body. One creature, the Perca scandens, has a very remarkable struc- ture adapted to maintain respiration, and, conse- quently, to support life for a considerable time when out of the water.
What to read after The Fish With the Minuter Animals of the Ocean?
You can find similar books in the "Read Also" column, or choose other free books by Ernest Denny to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It is in the fine blood-vessels of the fringe of the gills that the blood is acted upon by the oxygen of the water, and from the gills it is car- ried to the general system. Fishes are endowed with much less vitality than warm-blooded ani- mals, respiring simply through the medium of CIRCULATION OF BLOOD IN FISHES. 15 water ; in other words, only availing themselves of the small quantity of oxygen which is contained in the air mixed with water.
The number of aquatic respirations in fishes is be...tween twenty and thirty in a minute ; and the surface of the gills over which the blood is distributed, that the water may act upon it, is surprisingly great. It has been calculated that the gills of a large skate present a surface equal to 2, 250 square inches, or about the whole exter- nal surface of the human body. One creature, the Perca scandens, has a very remarkable struc- ture adapted to maintain respiration, and, conse- quently, to support life for a considerable time when out of the water.
What to read after The Fish With the Minuter Animals of the Ocean?
You can find similar books in the "Read Also" column, or choose other free books by Ernest Denny to read onlineMoreLess
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