Answer:
P wave and R wave
Atrial contraction = P wave
Ventricular contraction = R wave
Explanation:
The behavior of the frog heart from force recording can be classified into ; P wave and R wave.
utilizing the ECG ( Electrocardiogram) data the aspect of the force recording that is due to atrial contractions is the ; P wave while the force recording that is due to ventricular contractions is the ; R wave the ventricular contractions is also known as QRS
ECG is used to record the electrical activities of a heart at rest
They are the managed consumption of natural resources to prevent their depletion or the destruction of the environment.
Darwin called the ability of an organism to survive and reproduce in its environment fitness.
Some organisms were fit to do all of these things, whereas others were not.
Answer:
Fat, starch, sugars and protein.
Explanation:
Enzymes break these biomacromolecule bcoz cells get energy by breaking them.
Energy that are not renewable can be
exhausted and the increasing use of internal combustion engines could eventually deplete petroleum.
<h3>What is petroleum?</h3>
Petroleum are fuel that are mainly produced from natural gas. This includes crude oil and some others hydrocarbons.
This fuel are used by vehicles, heavy machines to generate energy. The energy is a nonrenewable one.
Therefore, The increasing use of internal combustion engines could eventually deplete petroleum energy.
Learn more on nonrenewable energy here,
brainly.com/question/17711999
