The portion of a sperm cell that contains digestive enzymes for penetrating he egg is called the acrosome.
I hope this helps.
I'm assuming you mean the molecular compound
and it's name is Hydronium. Hope this helps :)
Answer:
the trend that favor the more leaning curve from the explanation
The answer is that <span>all
veins carry blood back to the heart, except for the pulmonary vein. the
vena cava empty into the right side of the heart, so they technically
bring blood to the
</span>main atrium.
