<span>ecosystem good; ecosystem servic</span>
Answer:
substances can move from areas of low concentration to areas of high concentration
Explanation:
usually substances move across their concentration gradient which is from high concentration to low concentration. Active transport can allow substances to move against their concentration gradient.
Hey there,
The answer is leukemia
It happens when your bone marrow starts to produce to much of white blood cells that are not fully developed. Thus they cannot function properly.
Hope this helps :))
<em>~Top♥</em>
