Answer:
A.
Explanation:
The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.
Your aging aunt luella has has a series of small strokes. these strokes can progressively damage her brain and are most likely to produce dementia
I’m not really sure what the question is asking, but male sex chromosomes are ''XY.'' Please ask any other questions in the comment box below.
Answer:
Explanation:
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