The correct answer is A.
Animal cells do not have a cell wall.
A cell wall is the rigid, outermost covering of plant cells and is made up of cellulose. It is absent in animal cells. The cell wall is visible under a light microscope.
Animal cells are instead covered by a cell membrane. It is made up of lipids, proteins, and small amounts carbohydrates. It is a thin and delicate structure that can only be seen using an electron microscope.
The Tricuspid Valve<span>. The tricuspid </span>valve<span> is the three-leaflet </span>valve<span> on </span>the right<span> side of the heart between </span>the right<span> atrium and </span>the right ventricle<span> and stops the </span>backflow of blood<span> between the two. I hope this helps!!</span>
To compute inpiratory reserve volume (irv), one would need to know and it is: IRV = VC - (TV+ERV)
Inspiratory reserve volume is the maximal amount or more air that can be drawn into the lungs by determine effort after normal inspiration - assimilate expiratory reserve volume.