7. Test the effect of winter chilling on dormant buds. Each month collect a twig from some shrub such as a forsythia. Put the twig in a vase of ... How long a period of storage is needed to end their dormancy? 10. Expose houseflies to zero temperatures in a deep-freeze unit for varying lengths of time. How long can the fliesanbsp;...
|Title||:||Exploring science series|
|Author||:||Walter A. Thurber|