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.
By option A cell division.
<span>C. Blood components are continuously produced in the bone marrow.</span>
Answer:
Choice B
Explanation:
"Permeable" means "Letting solids or liquids through (a material.)" "Semi" means "half or partly." So "semipermeable" means allowing some objects through, but not all.
Answer: Fertilizer that ends up in rivers and streams from lawns and other places cause Algae.
Explanation:Algae can become harmful to the environment