Answer:
The heart is a muscle and therefore it can be stimulated by electrical impulses.
Explanation:
In the heart, the electrical activity is generated in the SA node and conducted from the right atrium to the left atrium in order to contract myocardial cells
Cells specialize to form specific tisue and organs because all cells have the same DNA. stem cells can develop into every type of cell inside the body.The cell is the basic unit of structure and function in all living organisms.
Most schools agree on the basic elements for pre-medical education. Minimum course requirements include one year each of biology, general (inorganic) chemistry, organic chemistry, physics, and related lab work for each. In addition, about two-thirds require English and about one quarter require calculus.
In developed countries, most individuals die at <u>hospitals</u>, whereas in developing countries most individuals die at <u>home</u>.
In excessive earnings nations the bulk of humans die of simply vast organizations of reasons: cardiovascular sickness and cancer. As cardiovascular sicknesses declined, extra humans died from cancer. The proportion of deaths from maximum different vast reasons of dying increased, too. This has brought about more range in reasons of dying. Generally, wealthier international locations have a better common existence expectancy than poorer international locations, which may be argued to be done via better requirements of living, extra powerful fitness systems, and extra assets invested in determinants of fitness (e.g. sanitation, housing, education).
Thus, option a is the correct choice.
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