This is an image of an electrocardiogram Which statement describes the condition of the heart at the point indicated in the electrocardiogram?
(The arrow is pointed at the left slant of the peak)
The muscles of the atria depolarize.
The muscles of the ventricles depolarize.
The muscles of the atria repolarize.
The muscles of the ventricles repolarize.

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )