The main form is carbon dioxide and methane
Answer: they are not living things
Explanation: The virus needs a living cell to multiply because on they're own they can't do anything.
Answer:
1. G 2. B 3. D 4.F 5. C 6.E 7. A 8. H
Explanation:
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Answer: Systematics
Explanation:
Systematics is the study of diversity of organisms including past and present and relationships among living things. Systematics as analytical approach, help us to understand the diversity and relatedness of both existing and extinct organisms. Systematics is also important in carrying out the conservation issues because, it attempts to explain the biodiversity which is related to different kinds of species and could be used in preservation and protect the endangered animals and plants.