Plants roots display positive gravitropism which means they grow in the direction of gravity
Answer: DNA can be used to identify criminals with incredible accuracy when biological evidence exists.
Explanation:
In cases where a suspect is identified, a sample of that person's DNA can be compared to evidence from the crime scene. The results of this comparison may help establish whether the suspect committed the crime.
No Problem at all!
The various types of cells making up the structural composition of your body (skin cells, muscle cells, cells of your stomach lining, etc.) are all Epithelial cells. The only other class of cells in your body are Gametes (sperm and egg cells).