11. An Amoeba is a unicellular, animal like protist that lives in ponds and streams. According to the cell theory, where did this cell come from? a. Another pre-existing amoeba cell b. Energy from the sun that allowed the amoeba to reproduce c. The nonliving environment d. A multicellular organism 12. What is a major difference between facilitated diffusion and active transport? a. Active transport moves substances against the concentration gradient b. Active transport uses proteins in the process c. Facilitated diffusion moves molecules through the plasma membrane d. Facilitated diffusion requires large amounts of energy
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According to the cell theory, all cells come from pre-existing cells. So, the amoeba cell must have come from another pre-existing amoeba cell. Answer: $\boxed{\text{Another pre-existing amoeba cell}}$ Show more…
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