To get accurate results in an investigation, what is one thing scientists need to do? A. Repeat the same procedures many times (have multiple trials).

B. Change the procedures each trial.

b

is correct hope this   also i learnd this in middle school

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.