Answer: polar ice caps form
Explanation:
It is C. Because the other 3 are in side of the the cell membrane to be protected.
2 seems like the best answer
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:
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