PCR, polymerase chain reaction, is the fastest way to artificially (in a laboratory) multiply few copies of DNA into many, in order to create enough of a sample to use for other genetic testing.
It is used quite often in forensic science, such as magnifying a small recovered sample of DNA from body fluids or tissue samples at a crime scene, into a vastly greater quantity of DNA for identification of suspect(s) or victim(s).
The first box is migration
The second box is the northern regions have become warmer because of climate change
The endoplasmic Reticulum is like an assembly line: The workers on the assembly line do their work, as the products move through the assembly line. Similar to the workers are the ribosomes on the reticulum, as they also do their work in a line. In the reticulum, like in a factory line, the proteins are produced, and like in the case of the facotry line, they are later sent to the other place in the factory or cell.
Since the number before the tens place is 1, that means you will round the number down instead of up so your answer is :
4620
No water has been discovered on either planet yet.
