B. actin filaments they’re linear polymers of globular actin subunits and are part of the contractile apparatus, in muscle and non-muscle cells
Answer:
D.
Explanation:
Animals need oxygen (O) to survive. It's purpose is to bring oxygen into your body. One of the products of cellular respiration is carbon dioxide. Your respiratory system also helps your body get rid of that carbon dioxide.
The two moons of Mars.Answer:B
<span>The lumbar trunk and intestinal trunk return lymp at the cisterna chyli. The cisterna chyli is also known as the receptaculum chyli. It is a normal anatomical structure seen as a saccular area of dilatation in the lymphatic channels that is located in the retrocrural space, usually to the immediate right of the abdominal aorta.</span>
