During childbirth, a hormone produced by the pituitary gland causes muscles of the mother's uterus (or womb) to contract. the more contractions there are, the more hormone is produced.

which best explains why this occurs?

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.