Zoology a Text book for Secondary Schools Normal Schools And Colleges
Zoology a Text book for Secondary Schools Normal Schools And Colleges
Thomas Walton Galloway
The book Zoology a Text book for Secondary Schools Normal Schools And Colleges was written by author Thomas Walton Galloway Here you can read free online of Zoology a Text book for Secondary Schools Normal Schools And Colleges book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Zoology a Text book for Secondary Schools Normal Schools And Colleges a good or bad book?
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It grows attached to submerged objects and is commonly of a dirty greenish color, though this may vary. This sponge is firm and gritty to the touch, and may be either compact or branched. Use the general out- line prepared for Grantia, noting the points of contrast. Is there any- thing like the osculum? the cloaca? Gemmules or reproductive bodies may occur imbedded in the flesh, especially at the base. 2. The Sponge of Commerce. This is merely the skeleton of a sponge from which all the cellula...r part has been removed. Select a small rounded specimen. Do you find any signs of the attached end? of an osculum? Split the sponge with scissors, beginning with an osculum. Are there any canals as in Grantia ? If so, what is their arrangement? Examine a small portion of the skeleton under the microscope. Test as before (for calcic carbonate) with dilute acid. Is the skeleton elastic? Why? DESCRIPTIVE TEXT. 20 1. The Protozoa are unicellular animals, or at most, masses of similar cells in a more or less globular form.
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