Advantage: Dichotomous keys are very useful because they allow non-expert users to identify organisms by directing them to look at the known, important organisms. Disadvantage: Disadvantage of dichotomous keys is that if a single wrong decision is made at any juncture, a wrong identification will result. Sometimes it becomes obvious that an error has been made, and you can retrace your steps until you get back on the right track, but this is not always the case
The answer is a because they decompose the dead matter and recover the nutrients thereby providing nutrients for plants
The correct answer is (c.) rolls in mud to cool off and deter flies. Species adapt over time through structural and behavioral adaptation. One of its examples would be rolling in the mud to cool off and deter flies, would best describes a behavioral adaptation of an elephant.
2 and 3 Becuase both undergo photosynthesis, which is only a think plants do. Hope this helps.