Conjunto de fenómenos de autorregulación, conducentes al mantenimiento de una relativa constancia en la composición y las propiedades del medio interno de un organismo.
Hierro, cobre, yodo, manganeso, selenio, zinc, cromo, cobalto, fluor, litio, níquel y silicio son losoligoelementos más importantes.
The answer is b.
Internal fertilization takes more time and energy but it allows for the offspring to revive more devoted care. When an organism spends that much time and energy investing in an offspring it becomes worth the investment to devote more care towards it.
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The difference is cardiac arrest is when the blood flow is blocked and MI, the blood flow decreases</span> or stops to a certain part of the heart
