Structure B looks like a strand of mRNA leaving the nucleus. So the answer would be B.
Sirius B is brighter than the sun.
Answer:
b) aorta
Explanation:
On contraction of the atrium, the atrioventricular valves open and push blood to their respective ventricles. Oxygenated blood from the left atrium moves to left ventricle. On contraction of ventricles, semilunar valves open and oxygenated blood from left ventricles is pushed into the aorta, a major artery which distributes blood to the body cells through different arteries.
Water enters the cell through the aquaporins of the semi-permeable membrane. Hope this helps! :)
<span>The branch of
anatomy that focuses on body structures that are visible to the naked eye is
called gross anatomy. It is only concern with macroscopic details and therefore
do not need any aid of instrument. Gross anatomy is used to study dead bodies
that uses two approaches. The systemic approach, studied the different system
of the body while in regional approach, human body is studied in different regions. </span>
<span> </span>
