Answer:D. Prothetic leg
Explanation:
All the other answer choices are still dreamt of by many scientists and engineers. but you always see people wearing prosthetic legs. D is the obvious answer.
Answer:
The winter solstice in the Southern Hemisphere is June 20 or 21, while the summer solstice, the longest day of the year, is December 21 or 22.
So I think the answer is
<em><u>D) celebrate the summer solstice</u></em>
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The volume of blood ejected from the left ventricle into the aorta each minute is called cardiac output.
<span>Cardiac output can be defined as the product of the heart rate or the number of heartbeats per minute (bpm), and the stroke volume which is the volume of blood pumped from the ventricle per beat.</span>
