If there were no land on earths surface, what would the pattern of surface currents look like?

Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

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.