Sedimentary rocks are

a) formed from magma
b) a type of foliated igneous rock
c) form because of changes in temperature and pressure or the presence of hot water and fluids
d) formed when loose materials become pressed or cemented together or when minerals form from solutions

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.