-Surface area to volume ratio. (surface area / volume)
-Nucleo-cytoplasmic ratio.
-Fragility of cell membrane.
-Mechanical structures necessary to hold the cell together (and the contents of the cell in place)
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The plasma membrane maintains homeostasis in the cell by keeping cell contents in and foreign material out, and by providing controlled avenues for the transportation of fuel, fluids and waste.
Answer:
Burrowing.
Explanation:
Tortoises can dig into the earth and build burrows with their sturdy paws and long legs, which shield them from predators as well as hot and cold temperature conditions.
