How are hagfish and sea anemones similar? How are lampreys and leeches similar

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

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by limiting types of goods produced

i might not be much but i think its c