The right answer here is option C. They occur in areas with ancient, mineral-poor soil.
An example of that is Amazonia in Brazil, it's one of the biggest forests on earth, and at the same time, we know its soil is poor, but at the same time it has some special materials that can be found there, such as niobium. This forest is, too, rainy almost all the time, and this many trees maintain the temperature of the whole earth stabilized. These kinds of forests can grow in this soil because of the burlap, that's organic materials from its own trees. It's consumed by them, and through this way, it survives and extends its size when humans don't use its resources too much.
C. decomposer
C. from other organisms
The answer is C) System. Systems can be found all over the animal kingdom. Most of the time, the organisms that belong to a particular system cooperate and collaborate with each other in order to remain healthy and safe.
Answer:
In atherosclerosis, plaque can grow to create a blood vessel stenosis. This stops the flow of blood upstream of the obstruction and increases the vascular resistance it causes an increase in blood pressure
