Answer:
............. the need of _Nitrogen, phosphorus and potassium_
Explanation:
Each of these fundamental nutrients plays a key role in plant nutrition. ... It's also needed to help plants grow and develop normally. Phosphorus in commercial fertilizers comes from phosphate rock.
Answer:
Explanation:
1) Excitation brings about contraction.
2) Contraction leads to an increase in blood pressure.
3) Changes in blood pressure results in the opening and closing of the heart valves.
4) The opening and closing of heart valves then regulates the flow of blood and it's volume.
Answer:
I believe that it is the lettuce.
Explanation:
it is the fist thing in the graph so it is the start/producer of the chain.
Answer:
B inorganic materials can form organic molecules under the right conditions
The SYMPATHETIC nervous system prepares the body to expend energy whereas the PARASYMPATHETIC nervous system allows the body to restore and conserve energy