It is b for 18 b for 19 c for 20
the answer is C, because I'm smart and I know that's it's right
PCR is commonly used to duplicate a small section of DNA in order to make it readable by the lab
Answer: Jet propulsion.
Explanation: A squid uses jet propulsion by filling its muscular mantle cavity (which is used to get oxygenated-water to their gills) with water and then quickly expel the water out of the siphon, just as a "water jet".
How Much Percent of Brain We Use?
100%
hope that helps and good luck
~May
