It should be an igneous rock because it formed by the volcanoes lava cooling down
Explanation:
In the majority of cases, the extra copy of chromosome 21 comes from the mother in the egg.
In a small percentage (less than 5%) of cases, the extra copy of chromosome 21 comes from the father through the sperm.
In the remaining cases, the error occurs after fertilization, as the embryo grows.
The magnification will provide better visibility and more detailed information.
Answer:
chemicals isn't a type of cell
but there is plant and animal cells
