Hey there!
I do believe that your answer will be choice A
The answer is true..............
New disease that affects the younger of a population, shortage of availability of food, new competitor for food, new predator of jaguars (though there arent many of those)
It is called genetic engineering
the elements that typically take electrons are generally found in the right, upper portion of the periodic table and include fluorine, oxygen and nitrogen.
hope this helps:)