1 What is the difference between weather and climate? 2 How might an unusually hot summer impact the water cycle and its influence on weather?
3 How might increasing global temperatures impact the polar ice caps?

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."

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

d. planting trees

the trees take in carbon to make oxygen.