Download e-book for kindle: Holt Science and Technology: Human Body Systems and Health by RINEHART AND WINSTON HOLT

By RINEHART AND WINSTON HOLT

ISBN-10: 0030255376

ISBN-13: 9780030255373

Physique association and constitution - stream and respiratory - The Digestive and Urinary platforms - verbal exchange and keep an eye on - copy and improvement - physique Defenses and sickness - Staying fit

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Extra info for Holt Science and Technology: Human Body Systems and Health Short Course D (Holt Science & Technology Modules 2005)

Example text

The key observation that supported big bang cosmology took place in 1964, when the German-American physicist Arno Allan Penzias (1933– ) and the American physicist Robert Woodrow Wilson (1936– ) detected the cosmic microwave background (CMB). Physicists regard the CMB as the remnant radiation signature of an intensely hot young universe. Although the discovery occurred quite by accident, their pioneering work provided the first direct scientific evidence that the universe had an explosive beginning.

Then, as now, water transport offered an efficient way of moving large quantities of materials. , the Phoenicians emerged as the first great maritime trading civilization within the Mediterranean Basin. From the coastal regions of what is now modern Lebanon, Phoenician sailors traveled across the Mediterranean in the well-designed, human-­p owered sailing vessels called biremes. The bireme had two sets of oars on each side of the ship and a large square sail. The ship’s name results from a combination of “bi” (meaning two) and “reme” The ancient Egyptians pioneered the development of (meaning oars).

The Egyptians transported cargo along the Nile River, using various types of barges and sailing ships. Then, as now, water transport offered an efficient way of moving large quantities of materials. , the Phoenicians emerged as the first great maritime trading civilization within the Mediterranean Basin. From the coastal regions of what is now modern Lebanon, Phoenician sailors traveled across the Mediterranean in the well-designed, human-­p owered sailing vessels called biremes. The bireme had two sets of oars on each side of the ship and a large square sail.

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Holt Science and Technology: Human Body Systems and Health Short Course D (Holt Science & Technology Modules 2005) by RINEHART AND WINSTON HOLT


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