Is a major excitatory neurotransmitter that regulates the release of dopamine.

What is the best way to document blood spatter patterns for subsequent bloodstain pattern analysis? crime scene drawing videotaping sampling photographs

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

2. which is the last step in the scientific method?