I think it's mitosis or meiosis
Answer is B !!!
you have to know what youre doing
Menstruation does not occur if the D) egg is fertilized.
If you are pregnant, you don't menstruate.
Heart rate. <span>From this site, the two channels of the autonomic nervous system originate the sympathetic and parasympathetic components. The sympathetic components increase heart rate by releasing the neural hormone catecholamines - epinephrine and norepinephrine. These hormones are cardio accelerators. Acceleration of the heart rate is called tachycardia.</span>
