.The answer to this question is: C. ionic bond
In general, Ion particle are <span>formed when atoms lose or gain electron (when loses electron, ion become positive. When gaining it, ions become negatively charged)
Among the chemical substances, Metal atoms had the positive ions and nonmetal atoms will have negative ions</span>
The hair cells are located in the basilar membrane.
<span>The correct answer is
A. heredity </span>
Shortness of breath after moderate physical activity most likely indicates limitations in cardiovascular fitness.
When performing physical activity, heart rate increases. And when heart rate increases, you must also take in more oxygen. Thus, if you are short of breath after moderate physical activity, then you have limitations in cardiovascular fitness.
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