Answer:The insurance that pays first (primary payer) pays up to the limits of its coverage. The one that pays second (secondary payer) only pays if there are costs the primary insurer didn't cover. ... If your employer insurance is the secondary payer, you may need to enroll in Medicare Part B before your insurance will pay.
Explanation:
Cross over? i have no idea lol
They were adapted to an environment and once it is taken away the plants will slowly start to die. I'm not 100% :)
B, because in all truth and honesty, stress is truly inevitable. Also, use process of elimination. I hoped that helped :)
Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.