Answer:
A DNA molecule is in the shape of a double helix twist, so it will look like a ladder.
Explanation:
The LEFT VENTRICLE of the heart supplies oxygenated blood to the aorta.
Aorta is the main artery that supplies oxygenated blood from the heart to other organs and tissues (except lungs, lungs are for gas exchange instead) so that they get enough oxygen and nutrients.
Meanwhile, the heart has 4 chambers, left and right atrium, and left and right ventricles. Atrium are for receiving blood from different vessels, and ventricles are for pumping blood out of the heart.
Since only the left ventricle is connected to the aorta, so, the answer should be left ventricle.
Reference picture by amac training.
A Burr hole.
hope this helps!
I think the answer to this is A