Answer:
Development of early maturing crop.
Development of high yielding crop.
Makes the plant to assume the desired shape and size.
Can obtain two or more orange varieties on the same root stock.
Ensures uniformity of genetic/clonal characteristics.
Development of drought resistant crop
Explanation:
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I believe it the red blood cells
Answer: a. Secondary
Explanation:
Once soil is already present all you need are animals to re establish the ecosystem