Answer:
I think its organic material from plants and animals
Explanation
Edge 2020
There are different trophic levels at each stage. Trophic levels determine the amount of energy at each stage of the food chain. For example, the energy is 100% at the producer (plant), so it's the 1st trophic level, and so on. Energy amounts decrease as you go up a food chain, and you rarely find more than 5 animals in one because there is not enough energy left for the 6th consumer
<span>They have various isomer structures often either open chain or cyclic isomers that readily interchange structures. </span>
Answer:
It could be halogens for example things like fluorine
