Answer:
75%
Explanation:
3/4ths are dominant, so 75% will be red.
Answer:
in the wall of the right atrium of the heart.
Explanation:
The sinoatrial node (SA), consisting of spindle-shaped cells, initiates the electrical activity of the heart. From its location in the right atrium in proximity to the superior vena cava, the electrical activity spreads to the atria, whose cells are larger than those of the SA.
Answer:
A. Cell membrane, DNA, ribosomes
Explanation:
I'm not so sure, sorry if i'm wrong ):
Lipids serves as the fluid interface between the intracellular and extracellular environments
