A. presence increases potassium concentration in the blood
Answer:
sample answer :
A horizon, B horizon, C horizon
Explanation:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale
N and P limitation is strongest in aquatic ecosystems (because
light and water isn't) governed by same principles as terrestrial ecosystems radically
different environmental controls streams have been treated as "sewers of
terrestrial ecosystems" yet stream ecosystems have their own
characteristics generated by the interaction of biota with the physical and chemical
properties of the system unlike terrestrial ecosystems, nutrients
"spiral" rather than cycle. The more limiting the nutrient, the
tighter the spiral. Detritus/heterotrophs <---> autotrophs.
