Books
4 results found| Title | Authors | Description | OpenBook ID | |
|---|---|---|---|---|
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The city in the world of the future | Hal Hellman | Discusses the definition of a city and examines how limited resources and a growing population will influence the way cities are planned and built in the future. | OL2727156W |
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Deadly bugs and killer insects | Hal Hellman | Describes a variety of bugs and insects and their harmful effects on the health of man and his pets and livestock. | OL2727158W |
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Defense mechanisms: from virus to man | Hal Hellman | Discusses defense mechanisms such as camouflage, flight, regeneration, chemical warfare, fighting, senses, and adaptation that are used by living organisms to cope with threats to their existence. | OL2727159W |
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The right size | Hal Hellman | Explains how an animal's size and shape are major factors in selective evolution or survival of the fittest. | OL2727171W |