Many organisms are multicellular, which means they have many cells-even trillions! The cells work together to help the organism do things such as create energy, reproduce, and get rid of waste.
Life Science: All About Mitosis and Meiosis(電子書)
- 作者： Cregan, Elizabeth R.C.
- 編號： GDS20150203153604JHG
$ 342 元
原價 342
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$342