What are producers? name two types of producers

There are two major types of primary producers – phototrophs and chemotrophs. Phototrophs use the energy from the sun to convert carbon dioxide into carbohydrates.Occasionally, terms such as 'secondary producers' and 'tertiary producers' are used.

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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."