[Seasonal cycle of strongylus in cattle on Réunion Island]

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Lysogenic Cycle of Bacteriophages

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Biological Clocks and Seasonal Responses

The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
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Rocky Mountain Spotted Fever

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Bacterial Gastroenteritis

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Leishmaniasis

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Anthelminthic Agents

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