Why must most seeds go through a period of cold before they will germinate?
What will be an ideal response?
Most seeds must go through a period of cold before they will germinate because it helps prevent the seeds from sprouting as soon as they mature and are dispersed. Seeds remain dormant in the winter until the following spring when warm temperatures help start the germination process.
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Explain the principal behind a model-based computer control system
What will be an ideal response?
In the third century, a rupture in the urban life of Mediterranean civilization occurred when
a. the Roman army collapsed. b. mass migration from the country crowded urban areas. c. Romans left the city to work on estates or commune with God. d. the fabric of the city changed as it became the center of religious life.
If the number 8.8 is stamped on the head of a bolt, the bolt is a ______ bolt.
A. metric B. UNC C. UNF D. grade 8
A short in one branch of a parallel circuit results in:
A) increased current flow. B) decreased power consumption. C) increased voltage drops in the remaining branches. D) increased circuit resistance.