The answer is that <span>healthy </span>legs<span> have </span>veins<span> with smooth, elastic walls that </span>are<span> perfectly designed to </span>adapt<span> to the changes in pressure within a </span>vein<span>. </span>Veins<span> have </span>valves<span> that keep blood moving in one direction: back toward the heart. As the </span>leg<span> muscles </span>are<span> activated, the </span>venous valves<span> open to </span>allow<span> one-way flow in the direction of the heart.</span>
Answer:
In a short detached manner.
Explanation:
Staccato is a form of musical articulation that describes a note of very short duration. The word means "detached" in Italian. This sound is generally expressed with the placing of a dot either above or below a particular note. However, this is not always the case when dealing with notation from the past.
Answer:
D- People can decrease their carbon footprint by reducing the amount of energy they use.
Explanation:
I just took the test.
Answer:
They could use it for emergencies.
Explanation:
If needed, they could call 911 and for help! it could be a big difference if kids did not have phones at school.