An error is that the scientist did not control their variables. They had one group of people playing the game at 6, and another group playing at 12. This means that other things might have affected the scores other than what was being tested, which was caffeine.
The answer would be: True.
Answer:
One is polar and the other is non-polar.
Explanation:
The makeup of both water and isopropanol is different from each other due to their polar nature. Water is a polar substance means that it makes poles i.e. positive or negative while on the other hand, isopropanol is non-polar substance so due to this reason water and isopropanol make different layers. If both are polar or nonpolar substances so they will able to mix with each other.
Producer, primary consumer, secondary consumer, tertiary consumer, and decomposer.
i hope this helps. if it did please mark brainliest.
Answer: Diversity is needed in approaches to managing forest ecosystems, just as in the forest ecosystems themselves. It is now widely accepted that biodiversity is the measure of biological variety at many scales, from the gene to the ecosystem.