Question: Q: Methyl groups are found within what? Choices: - rna acids - DNA molecules - peptide chains - amino acids A:
Answer: amino acids

Question: Q: Titration is a method to determine what in acids or bases? Choices: - alkalinity - maturation - glucose - concentration A:
Answer: concentration

Question: Q: What makes up the core of the endoskeleton? Choices: - dermis - notochord - thorax - vertebral column A:
Answer:
vertebral column