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Answer:
I think it can be best described as sets
Answer:
A quadrat is a frame (usually a square or a circle) of known area used to isolate a subset of the population. This subset will comprise one sample. Quadrats come in various sizes (and shapes) with the size selected determined by features of the organisms in the population to be sampled.
Explanation:
hope this helps
Secretion helps in moistening the food, making it easier to swallow and preventing oral infections.