Cytokinins are a class of plant hormones that regulate growth by promoting cell division. cytokinins are produced mainly in meristematic tissue, where most plant growth occurs. which system carries cytokinins produced in the roots to the rest of the plant?

Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.