Electrons and protons because they are essentially always the same
The classification of living things makes it easier for scientists to answer many important questions.
Examples:
-How many known species are there?
-What are the defining characteristics of each species?
-What are the relationships between these species?
One compound can be differentiate from other by its composition although both look same. The diamond has the chemical formula of carbon (c) as it is a repeating unit of carbon which has shining features. On the other hand zirconia is zirconium dioxide (Zr. When it is crystallized it becomes shiny as like diamond. However the look of the two are meanwhile similar the composition is totally different as well the molar mass.
D. Gravity because the solar system wouldn’t stay together without the gravity pulling the planets together.
Answer:
1. Abiotic
2. Biotic
3. Biotic
Explanation:
Abiotic includes nonliving.
Biotic includes living.