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>
B. the rate will decrease. plants need carbon dioxide
answer is : b. the universe ♡
The answer is C. Fertilization. hope I helped.
Answer: d.) The element is named after the Latin word for calcium.
Explanation: