Atestable explanation that's supported or refuted is called a/an. a. variability.. b. hypothesis.. c. reaction.. d. experiment.

B.a hypothesis "based on my research" a hypothesis is based on some previous observation such as noticing that in November many trees undergo colour changes in their leaves and the average daily temperatures are dropping. Are these two events connected? How? Any laboratory procedure you follow without a hypothesis is really not an experiment. It is just an exercise or demonstration of what is already known.

1) clean up you lab area2) dispose of the chemicals as instructed by your teacher3) put everything back where it belongs unless your teacher tells you otherwise4) dispose of gloves5) wash hands with soap and water

What have scientists learned about plant behavior by studying the dodder plant