Yes cells are the blank unit for all things that are living
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An atomic nucleus is positively charged because it is composed of protons.
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Answer:B
Explanation:Coefficient represents the number of units of each substance.
Answer:Because of the rapid changes in altitude and temperature along a mountain slope, multiple ecological zones are “stacked” upon one another sometimes ranging from dense tropical jungles to glacial ice within a few kilometres
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Answer:
A chemical change is a change in the chemical makeup of a substance and results in a new substance. Ice and water both have the same chemical makeup - ice is just a different state and has the same atoms but in an expanded form.
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