Explain how an otherwise young, healthy individual could have a serious heart
condition.

Below! : )

Explanation:

Yes, even if you have a healthy lifestyle and may do everything in your power to be healthy, you can still develop heart problems. Many people develop diseases and complications due to their genes. Depending on your family history of health, that can determine your health and future generations.

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answer; /// (nutrition) i believe is the correct answer;

the plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. the magma then emerges as lava from the boundary and cools, creating a new crust.