Answer:
It is called the S-A node, or rather sinus node.
That was sir Isaac Newton’s only discover so it is true
BMR or Basal Metabolic Rate
Which of what? What’s the rest
Answer:
Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes.
Explanation:
hope this helps!