Answer:
D
the littoral zone is close to the shore and is partially submerged with shallow water. It is the uppermost zone of the aquatic water body. It is the part of lakes, rivers, ponds and sea.
Explanation:
<em> took the test</em>
Answer:
A. lack of available healthcare
Explanation:
developing countries struggle to find proper health care as they usually have a low HDI (human development index)
Regulation of gene<span> expression includes a wide range of mechanisms that are used by cells to increase or decrease the production of specific </span>gene<span> products (protein or RNA), and is informally termed </span>gene regulation<span>.</span>
Answer:
For a limb to regenerate, you need bone, muscle, blood vessels and nerves. There are adult stem cells, a kind of undifferentiated cell that can become specialized, that regenerate muscle, but they don't seem to activate.