What is the density of a liquid with a mass of 2 kg & a volume of 10 liters

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.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Ascientific idea becomes valid when it is what?