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السؤال 112

Which conditions does a seed need in order to germinate? Select all that apply.

  1. Light
  2. Waterالإجابة الصحيحة
  3. Oxygenالإجابة الصحيحة
  4. A suitably warm temperatureالإجابة الصحيحة
  5. Mineral ions from the soil

الشرح

A dry seed has to take in water before anything inside it can work, it needs oxygen so that its cells can release energy, and the chemical changes involved run far too slowly when it is cold. Light does not belong on the list, since seeds buried well below the surface come up perfectly well, and minerals matter only later once a seedling is drawing on the soil.

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السؤال 112: Which conditions does a seed need in order to germinate?… · Plants and Photosynthesis · Questena