Answer:
We determined that if phosphorus is provided at the required level of 0.33%, the optimal ratio of calcium to phosphorus is 1.39:1 or 1.25:1 to maximise daily gain and gain-to-feed, respectively. To optimise bone ash, which is important for breeding sows, the ratio is 1.66:1,”
Explanation:
Answer:
D. Separate ecosystems can affect each other.
It should be a short-day plant because it grows in the winter.