A Laboratory Manual in Elementary Biology; An Inductive Study in Animal And Plant Morphology Designed for Preparatory And High Schools
A Laboratory Manual in Elementary Biology; An Inductive Study in Animal And Plant Morphology Designed for Preparatory And High Schools
Boyer, Emanuel Roth, 1851-1900
The book A Laboratory Manual in Elementary Biology; An Inductive Study in Animal And Plant Morphology Designed for Preparatory And High Schools was written by author Boyer, Emanuel Roth, 1851-1900 Here you can read free online of A Laboratory Manual in Elementary Biology; An Inductive Study in Animal And Plant Morphology Designed for Preparatory And High Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Laboratory Manual in Elementary Biology; An Inductive Study in Animal And Plant Morphology Designed for Preparatory And High Schools a good or bad book?
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(l>) Examine the tongue. Can it be protruded beyond the jaws ? Note its attachment. What is peculiar about * The color and markings should be observed on the live Frog, if possible, and compared at different times. Digitized by LiOOQ IC 72 ANIMAL TYPES. the tongue of the Frog ? What do you suppose is its special function ? Compare it with that of the Perch. (V) Examine the eyes and compare them with those of the Perch. Name the points of resemblance and differ- ence between the eyes of the Frog... and those of the Perch. (d) A little way back and below the eye, observe a thin portion of the skin (tympanum) or ear-drum, stretched over a firm ring, which outlines the external ear. With your needle prick a hole into the tympanum. Pass a tipped bristle through this pore and observe the points at which it appears in the mouth and the evident course of the tube (Eustachian tube) through which it has passed. (e) Identify the nostrils (nares) near the tip of the snout. How many do you find, and how are they arranged ?
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