Studies of Animal Life : a Series of Laboratory Exercises for the Use of High Schools
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In our eReader you can find the full English version of the book. Read Studies of Animal Life : a Series of Laboratory Exercises for the Use of High Schools 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 Studies of Animal Life : a Series of Laboratory Exercises for the Use of High Schools
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3. Why does an oyster have two unlike valves?
4. How can an animal so well protected by a shell as the clam or oyster be eaten by the starfish?
5. What is a " mussel " ?
6. What effect, in the course of long evolution, has the heavy protective shell had upon the clam ?
72 STUDIES OF ANIMAL LIFE.
2. THB SNAIL.
A. General Observations.
1. Watch the snail and observe its actions.
2. What is its form of symmetry?
3. What means of protection has it? (Disturb it gently.) B. The Shell.
1. What fitness... is there in the term "univalve"?
2. Ascertain the names of the different parts of the shell by comparing them with a diagram. (Dem.) 3. Is the spiral right handed or left handed ? (Hold the shell with the aperture toward you and the spire pointing up.) 4. Do all snails possess shells ? (Dem.) C. Locomotion.
1. Identify the part (foot) by means of which the snail creeps.
2. Can the snail creep backward as well as forward ?
3. Can it climb up the side of the aquarium while under water ? While out of water ?
What to read after Studies of Animal Life : a Series of Laboratory Exercises for the Use of High Schools?
You can find similar books in the "Read Also" column, or choose other free books by Herbert Eugene Walter to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
3. Why does an oyster have two unlike valves?
4. How can an animal so well protected by a shell as the clam or oyster be eaten by the starfish?
5. What is a " mussel " ?
6. What effect, in the course of long evolution, has the heavy protective shell had upon the clam ?
72 STUDIES OF ANIMAL LIFE.
2. THB SNAIL.
A. General Observations.
1. Watch the snail and observe its actions.
2. What is its form of symmetry?
3. What means of protection has it? (Disturb it gently.) B. The Shell.
1. What fitness... is there in the term "univalve"?
2. Ascertain the names of the different parts of the shell by comparing them with a diagram. (Dem.) 3. Is the spiral right handed or left handed ? (Hold the shell with the aperture toward you and the spire pointing up.) 4. Do all snails possess shells ? (Dem.) C. Locomotion.
1. Identify the part (foot) by means of which the snail creeps.
2. Can the snail creep backward as well as forward ?
3. Can it climb up the side of the aquarium while under water ? While out of water ?
What to read after Studies of Animal Life : a Series of Laboratory Exercises for the Use of High Schools?
You can find similar books in the "Read Also" column, or choose other free books by Herbert Eugene Walter to read onlineMoreLess
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