Ascaris Lumbricoides
Because of its size and availability, Ascaris (Gr. askaris, intestinal worm) is usually selected as a type for study in […]
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The Hydrologic Cycle
The hydrologic cycle, or water cycle, moves water from land and ocean to the atmosphere. Water from the oceans and
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Humidity of the Atmosphere
Blistering summer heat waves can be deadly, with the elderly and the ill at greatest risk. However, in such weather,
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Roundworms in Nematoda
Approximately 25,000 species of Nematoda (nem-a-to´da) (Gr., nematos, thread) have been named, but many authorities now prefer Nemata for the
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World Patterns of Air Temperature
Surface type (urban or rural), elevation, latitude, daily and annual insolation cycles, and location (maritime or continental) all can influence
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Clouds and Fog
Images of the Earth from space show that about half of our planet is blanketed in clouds. Clouds play a
Temperature Structure of the Atmosphere
In general, the air is cooler at higher altitudes. Most incoming solar radiation passes through the atmosphere and is absorbed
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Temperature Contrasts: Urban and Rural
On a hot day, rural environments will feel cooler than urban environments. In rural areas, water is taken up by
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Earth’s Surface and Air Temperature
This chapter focuses on air temperature —that is, the temperature of the air as observed at 1.2 m (4 ft)
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Blood of Fishes: Anti-Freeze Proteins
The colligative effects of solutes in seawater (around 450 mM) depresses sea water freezing point to –1.9°C , while ordinary
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