From School Library Journal
Grade 6-9-Two titles that provide a wealth of information. Invertebrates includes one-celled organisms, sponges, mollusks, arthropods, echinoderms, cnidarians, and various types of worms. Vertebrates explores the similarities and differences in physical features and behavior of members of the major classes of phylum Chordata with chapters devoted to fish, amphibians, reptiles, birds, and mammals. The texts are well written and readable, but, unfortunately, their format is dull and unappealing. Black-and-white photographs vary in quality; some are dark and indistinct. Simple Animals (Facts on File, 1989) by Linda Losito and others offers colorful and informative photographs, charts, and diagrams, with similar chapter arrangement, but each is divided into subheadings, making it easier to read and locate information. Nonetheless, Aaseng's books are good, solid resources for reports.
Cynthia M. Sturgis, Ledding Library, Milwaukee, ORCopyright 1994 Reed Business Information, Inc.
From Kirkus Reviews
In the Venture series, a close look at invertebrates, which comprise more than 95% of all animal species. Intended for teens who want ``advanced information,'' the book has the readability of an encyclopedia but lacks an organizing overview and adequate illustrations and suffers from a limited glossary and index. A standard science encyclopedia (e.g., Grolier's The New Book of Popular Science) provides more information, with better organization and graphics. Some of the information here is incomplete: in discussing sponges, Aaseng describes two forms of asexual reproduction but ignores sexual reproduction. In the glossary, ``ossicles'' are defined as ``small hard nodules of calcium carbonate'' and ``spicules'' as ``long sharp supportive structures.'' According to the text, ossicles, too, are supportive structures, while spicules come in ``a variety of shapes.'' Aaseng notes that most biologists class Protozoa in their own kingdom, ``Protista,'' which appears in neither glossary nor index. Not a first choice. (Nonfiction. 12-14) --
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