The main reason that it's important to test only one variable at a time is so that a. quantitative data can be recorded. b. qualitative data can be recorded. c. scientists can easily tell which variable caused the results. d. scientists can have many hypotheses tested at once.

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. me % babies born at different weights - babies born in that category which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and totum save and exit next submit type here to search