Troposphere.
Hope it helps!
base on their characteristics they share
Answer:
Lactose intolerance
Explanation:
Lactose intolerance occurs when your small intestine doesn't produce enough of an enzyme (lactase) to digest milk sugar (lactose)
Halophiles are extremophiles that thrive in environments with very high concentrations of salt. <span>Halophiles prevent this loss of water by increasing the internal osmolarity of the cell by accumulating </span>osmoprotectants<span> or by the selective uptake of potassium ions. Hope this helps.</span>
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Answer:
by looking at their physical features, the fossil record, and dna sequences