if a metal is an answer then that iis the answer.
There are no choices but examples of biotic factors are trees, mosses, ferns, fungi, mammals, birds, reptiles, worms, plants, and lichens.
Tuberculosis mostly infects and destroys the lungs.
Answer:
All land plants undergo an alteration of generations to reproduce; the sporangium is borne upon the sporophyte, which is the asexual second generation structure
Explanation: