<span>Out of a flatworm, sponge, coral, or crab, the complex invertebrate is a crab. Hope this helps, good luck </span>
The element found in both DNA and protein is nitrogen
If the Na+ voltage-gated channels in a muscle cell open, the Na (sodium) ions rush inside the muscle cell and makes the cell more positive as Na ions carry positive charge on it. Due to the entry of positively charged ions inside the cell, the cell becomes less negative and more positive. This is called depolarization of cell.
How this can be prevented/can vaccines help?
What age group is at risk?
Could it be lethal?
Why does this virus happen?
