I believe the stage of interphase in which cells copy their DNA is the S phase. :)
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>
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your brain makes special hormones called GnRH, and these hormones signals the testes to make more testosterone.
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i hoped this helped:)
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Natural selection and selective breeding can both cause changes in animals and plants.the difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. for this reason selective breeding is sometimes called artificial selection.
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Hope this helped Mark BRAINLEST!!!
