1. would be D
2.would be B
The rapid depolarization phase
of myocardial contractile cells is due to the Na+ ions. Sodium ions are essential
for regulation of blood and body fluids, communication of nerve impulses, heart
activity, and metabolic purposes. Physiologically, it survives as an ion in the
body. Sodium is needed by
animals but is not needed by plants. The human prerequisite for sodium<span> must be less
than 500 mg per day. </span>
Answer:
the 4th one The lumen, is my guess
Answer: Initially part of the flower will be blue and part will be red, but eventually both colors will appear in all parts of the flower.
Explanation: