Answer: a naturally occurring depsipeptide used in the transport of potassium
The correct answer is C, due to the fact that the things that power electrical energy are non-renewable, such as coal and other products. hope this helps, have an amazing day :)
Transform boundary, meaning that they are pulled horizontally
d. They can be concentrated in an organism’s fat tissues.
This is referred to as biomagnification -- the POPs become more concentrated as they move from one animal to another. This is a main concern because even trace amounts, in animals at the bottom of the food chain, can cause toxicity to animals at the top of the food chain.