Explain how much of that energy is “lost” as it is passed along in an ecosystem? Is really “lost”?

It’s not ever really lost so none

Explanation:

Matter cannot be created or destroyed

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."