Answer:
An electron in an excited energy level of an atom will always drop to lower energy levels, emitting very specific wavelengths of light in the process.
Answer: A group that closet matches characteristics
Explanation:
A representative sample is a group that closely matches the characteristics of its population as a whole. In other words, the sample is a fairly accurate reflection of the population from which the sample is drawn.
<span>Mosses cannot grow tall because they do not have tubes to carry water upwards. They rely on diffusion to carry their water.</span>
Low amounts of adrenaline, secreted within 30 seconds of learning, have a role in the consolidation of memory. Emotions that produce adrenaline therefore have an effect on the strength of a newly forming memory. The memories that are formed under circumstances of emotional arousal are often vital to survival.
