B. Adolescents need more calories and nutrients, especially if they are very inactive.
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 & Explanation:
Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.
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The appropriate response is an explicit memory. It is one of the fundamental types of a human long-term memory. It is obtained and utilized unknowingly and would affect being able to contemplations and practices. One of its most normal structures is a procedural memory, which people groups playing out specific errands without cognizant consciousness of these past encounters.
