Silver Burdett Science Program

Silver Burdett Science Program

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In what way is the digestive system of earthworms more highly developed than that of the cuplike animals? Digestion in jellyfish and sea anemones takes place in the hollow cavity of the body. This cavity has only ... Separate the edges of the two sheets of glass on three sides with narrow strips of cardboard, and fasten these edges with masking tape. ... The movement of this water into the clam can be seen if a drop of food coloring is placed in the water at the edge of the clama#39;s shell.

Title:Silver Burdett Science Program
Author: George G. Mallinson
Publisher: - 1965

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