Fungi should be the answer.
It depends on how u do it. If it’s near an ocean, it can cause harm to sea animals, or on land, it can cause pollution, and kill land animals as well.
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
A carnivore is something that eat meats.
Answer;
C) A positive feedback loop.
Explanation;
-Biological systems operate on a mechanism of inputs and outputs, each caused by and causing a certain event. A feedback loop is a biological occurrence in which the output of a system amplifies the system (positive feedback) or inhibits the system (negative feedback)
-Oxytocin is controlled by a positive feedback mechanism where release of the hormone causes an action which stimulates more of its own release. When contraction of the uterus starts, for example, oxytocin is released which stimulates more contractions and more oxytocin to be released.