Which of the following is a true statement?
mucus protects the stomach lining from digestive secretions.
protease breaks down lipids into fatty acids and glycerol.
lipase breaks down proteins in the small intestine.
pepsin is an antibacterial agent that kills some bacteria.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.