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Time Materials Used: The subunits themselves must either be pumped into the cell from the surrounding environment or fabricated from still simpler raw materials received from the environment. Therefore, the length of the lag phase is governed by the time materials used it takes the cells to stock up on these critical supplies. If the nutrient medium is rich in the needed raw materials, the raw materials can be pumped quickly into the cell, and cell division can start promptly. If the nutrient medium is poor, the cells take a much longer time materials used to store up the threshold concentrations of the necessary raw materials.
In captivity, nests in box placed on cage shelf (see Part IV). Nesting materials—Supply leaves, shredded bark, moss, dry grass, bits of old fur; drop on Floor of cage; pet makes own nest; supply fresh materials from time materials used to time materials used.
FOOD
In wild, flying squirrels feed on nuts, seeds, berries, plant buds, and some insects. Well-balanced diet essential in captivity.
Because molecules of organic materials are susceptible to radiation, we may soon see the development of tougher plastics, economically vulcanized rubber, and even more rigid wood products for furniture. These chemical processes, fascinating in their complexity and variety, are rapidly approaching the point of economic utility, at which time materials used a whole range of new materials may be at man's disposal. |
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