All the changes (or improvement) that take place during the life of an organism is known as <span>"Development"</span>
Answer:
The statement "The stem cells preserved from the umbilical cord of the person" is the BEST source of stem cells and minimizes the risk associated with stem cell transplantation.
Explanation:
On late back before 90s people use to throw away the umbilical cord as well as the blood because they believed it as a medical waste. But, in today's generation parents are found to be storing safely their baby's umbilical cord and the blood as it has the stem cells which can be used against the treatment of various life-threatening and debilitating diseases. It has also shown the visible results in the treatment.
Ocean trenches<span> are </span>formed<span> by subduction, a geophysical process in which two or more of Earth's tectonic plates converge and the older, denser plate is pushed beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust (the lithosphere) to bend and </span>form<span> a steep, V-shaped depression.
i hope this helped ❤❤</span>
The answer is C because you're reusing something for something else
