Haploid number of chromosomes
So that over time they can adapt to survive
No todas las bacterias son perjudiciales los lactobacilos son bacterias que ayudan en la digestión
Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.
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