Answer:
During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.
Explanation:
They eat other snakes, including venomous snakes. They have developed a hunting technique to avoid being bitten by clamping down on the jaws of the venomous prey, but even if bitten, they are immune to the venom. They also eat amphibians, turtle eggs, lizards, and small mammals, which they kill by constriction.
Answer:
white for the first one and brown for the secound one
Explanation:
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.
