Answer:
If the type of food available changes, then the frequency of beak also changes.
Scientific methods must be supported by observations and results from many investigations and are not absolute.
RFLP or Restriction Fragment Length Polymorphism exploits the variation of homologous DNA (Deoxyribonucleic Acid) sequences. This technique is frequently used in different types of analysis such as genotyping, paternity tests, forensics, hereditary disease diagnostics, and many others. In diagnosing diseases, PCR is use to find the DNA of pathogens in small amounts to diagnose hundreds of genetic diseases. While in forensic investigations, PCR can give a probably ID from 20 cells.
Answer:
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Since people with HIV have weakened immune systems it would be:
C) People with HIV are unable to fight off these rare diseases.
