The primary organs of excretion are?

Lungs and Kidneys

Explanation:

The organs of excretion in humans include the skin, lungs and kidneys.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)

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."