Protons and Neutrons affect the mass. Protons and Electrons change the charge of the atom (positively or negatively charged). Valence electrons are the ones that do fun stuff in chemical reactions, they are responsible for making/breaking bonds, at least to my understanding.
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"Protein" helps in packaging of DNA<span> in eukaryotic chromosomes
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Answer:
exoskeleton
Explanation:
An exoskeleton is the hard outer covering that supports and protects some animals without backbones.
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Cancer is the rapid, uncontrollable division of cells.
Bigger island size means more biodiversity, so it would be better to plan a national park here than in a smaller island, with less biodiversity. Building the parks establishes a secure location where humans will not impact the environment.