Answer:
True
Explanation:
This is true, however, the expansion of the number and types of health services is not limited to these factors only.
Population trends inform the preparation of health intervention procedures and delivery of said interventions. Advances in research methods may also impact health services. Diseases and illness impacts health services expecially during outbreaks.
Answer: Refractory period of the cardiac action potential
Explanation:
Unlike the skeletal muscle which can be reactivated before it reaches a contraction, cardiac muscle must wait before it is almost completely relaxed to be activated again (because of its long refractory period), so one cannot make an increase in strength of contraction with a high frequency of stimulations.
Answer:
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Health, population and environment education is introduced as an integrated subject due to profound interrelationship that exists among the subject matters of these three disciplines. The natural physical aspects and man- made things come under the physical aspect.
