C. The less energy the organism requires, the more efficient the energy transfer.
<h3><u>Explanation;</u></h3>
<em><u>All living organisms need energy in one form or another since energy is required to drive metabolic process in various metabolic pathways, which organisms rely on for survival.</u></em>
<em><u>Food chains show how energy flows in an ecosystem from the lowest trophic level to the highest level </u></em>and also how efficiently organisms acquire this energy, use it and how much energy remains for use or how much energy is transferred to the next trophic level.
The less energy an organism requires, the more efficient the energy transfer as more energy is conserved.
You can't hear sound on the moon because of space. Space is a vacuum so you can't hear anything unless there is a medium for it to travel through (like air)
When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the C. experimental. Experimental variables are the things you are studying in the experiment and it is the only variable you can change.