Answer:
not significant to the overall mass of the atom
Explanation:
The mass number of an atom is the combination of the mass of the protons and neutrons. Electrons are not included because their mass are so insignificant that is doesn't change the total mass much, therefore they are left out. The mass of an electron is about 1,830 times smaller than protons and neutrons.
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Question: <span>During the ________ stage, the placenta is expelled from the uterus.
Answer: It is the placental stage.
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Answer:
they mutate and become immune to modern medicine
Explanation:
