Both because their can be pollution and good things
This link should help it has all the information you need...
https://arxiv.org/pdf/1511.08792.pdf
Paramecia move by flagella. The others do not.
Eukaryotic cell
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.
<span>The advantage is that eukaryotic cells have a nucleus which functions formally as to store the DNA of the cell which can translate into many functions such as cell division and work structure between cells that forms the hierarchial function to tissues.<span>
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Answer:
The answer is A, because 55+15=70, and 70-67=3