The karyotype is a test that provides information on the number, size and shape of chromosomes in a sample of body cells. It can be used to find out whether a fetus has some chromosome defects that could cause developmental problems, birth defects or disability. It can also be used for determining the sex of the baby.
That would be the tuber, which is formed from a root or stem of a plant.
Answer: Countour plowing
Explanation: Contour plowing in Pennsylvania in 1938. The rows formed slow surface water run-off during rainstorms to prevent soil erosion and allows the water time to infiltrate into the soil.
