The word in the blank should be 'segregation' :)
Answer:
Polyploid cells have more than 2 sets of each chromosome. Hope that helped! :)
epithelial tissue can be found lining body cavities, as well as your skin is an epithelial tissue
The answer is B. By polluting near by streams with pesticides and herbicides
He found a nuclear structure (cells) in plants by looking through a microscope
