If organisms that lived there before had exceeded the carrying capacity then the ecosystem would no longer be able to sustain life
The correct answer is angioplasty.
<span>
Angioplasty is one of the treatments after heart attack including special tubing with an attached deflated balloon. The tube is threaded up to the coronary arteries. Angioplasty is usually combined with the placement of a small tube called a stent which helps to restore the flow of blood through the artery and decreases its chance of narrowing again.</span>
I'm pretty sure it's heterozygous Rr.