Estelle makes a Venn diagram to compare the fast- and slow-flowing areas of rivers and streams.

NEEED HELP ASAP
Which label belongs in the region marked X?

Fewer plants
Warmer
Cloudy water
Less oxygen

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

i think that you are smart and you should fit for it out