Answer:
your not aloud to do tests on here or at least don't say that for next time.
Explanation:
I guess I would say b or d. Because concluded results change over time with better technology and some solutions dont work.
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:
by having ex donateing sperm reproducing and helpkeep earth clean and stop violence
Explanation:
Answer:
the answer is c) Test subjects may get bored and want to quit early.
Explanation:
