Answer:most protozoa (prevalently attached ciliates) can only graze on suspended bacteria and particles; in this way they have a significant effect on the effluent quality.
Explanation:Even though some protozoa (crawling ciliates and other forms) can eat flocculated bacteria, most protozoa (prevalently attached ciliates) can only graze on suspended bacteria and particles; in this way they have a significant effect on the effluent quality.
Kingdom, Phylum, Class, Order, Family, Genus, and Species.
Some examples of polygenic traits are height, skin color, eye color, and hair color.
1) I have blue eyes and my mom also has blue eyes.
2) My sister has dark brown hair while, I have light brown hair.
To keep it short, basically survival of the fittest means a natural selection
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