Why does bromothylmol blue solution turn yellow when carbon dioxide is added? what reation is occuring to turn it yellow?

Which of the four major uses is predicted to change the least by 2020?

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.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?