The process of mrna processing eukaryotes is modeled above. what does the addition of the poly-a tail provide for the cell

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

Number and variety of living organisms includes genetic, species, and ecological types