Answer:i found this on google and got it right
Explanation:
Image result for What is the difference between spindle fibers and spindle microtubules
Spindle fibers are used in cell division, and are made of microtubules. ... As the others have written, microtubules are a “track” that can move organelles around when “motor” proteins (that cleave ATP) pull those organelles. The spindle is what moves the chromosomes during mitosis and meiosis
Answer:
Fertilizers are man-made inorganic salts used to replenish nutrients in the soil.
You need to test the hypothesis several times and record all results. Once you obtain the same results several times, I think that means its a theory
Answer: all Eukaryotic cells.
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