19. Phosphorus is an important nutrient. Why is it not better to have more in the rice grains?
(A) Too much phosphorus will become toxic for animals and humans who cat the grains.
(B)Phosphorus is stored as phytate in rice grains, and phytate is not bioavailable to humans and animals.
(C) Animals do not need phosphorus, only plants do.
(D) More phosphorus in the grains means that less fertilizers are useD.
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