Answer:
Ritalin (methylphenidate) and Adderall are used to treat ADHD, and are well known to cause a false positive for amphetamines and methamphetamines.
Explanation:
The double helix unwinds and each strand forms a template for a new strand. The paired bases release many types of proteins. The DNA is cut into pieces using polymerase enzymes.
Kingdom>Phylum>Class>Order>Family>Genus>Species
This could me a ecosystem in a forest with different trees animals flowers etc.