Answer:
A compound is made up of atoms of different elements combined together in a chemical reaction with fixed ratio and in a defined manner via chemical bonding.
Elements on the other hand are pure chemical substance made of same type of atom.
The properties of the compound is related to the ratio of elements in a way that the elements individual properties will manifest itself in the compound giving it a hybrid property.
<span>The repolarization of cardiac muscle is due to closure of calcium (Ca) channels and potassium (K) exiting the cell when additional voltage gated K channels open.
Due to these changes within the heart, repolarization has to happen. This process refers to returning the cardiac muscle to its resting state, and the opposite process is depolarization.
</span>
Answer:
A) Earth
or C) Mercury
sorry i wasn't that much help but i narrowed it down.
1. Genetic engineering (bioengineering)
2. Cloning
3. Stem Cell research
4. GMO production
To name a few