Answer:
Your answer would be:
A blood clot occurs when there is damage to a blood vessel.
Explanation:
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Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords
Answer:
Explanation:
-Sodium-potassium pump (exchange of sodium and potassium ions across cell walls)
-Amino acids moving along the human intestinal tract.
-Calcium ions moving from cardiac muscle cells.
-Glucose moving in or out of a cell.
-A macrophage ingesting a bacterial cell.