How many species go extinct in an average day?
a. 3
b. 72
c. 1000
d. 2

prism b but im not for sure

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."

c should be the answer

b) the inside picture would look at a very high temperature in a very low ph