The answer could be either B or D. Both are important for marine biology. I would have to say D is the best answer though!
Answer:
It should be 2- Bonds
Explanation:
Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules.
:)
Answer:
A. It is the most massive part of the atom.
In a typical ECG (Electrocardiogram) the first wave obtained is P wave; The P wave represents the depolarization of the atria. After this, the QRS complex is formed. The QRS wave represents the depolarization of the ventricles. During the depolarization phase, the ventricles contracts and pushes the blood into the atria. Hence, the correct answer is depolarization of the ventricles.
