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Ears Differentiation and Division of Human Cells Gene Expression Immunity & Cancer Salmonella vs E.coli Doctor Equipments Alzheimer Disease How the Eyes work Bacteria and Viruses Bonding and the Periodic Table The Chemistry of Microbiology Common Respiratoty Diseases Hygiene and Nutrition Heart Structure and Double Circulation Common Diseases in Human Beings

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Energy and Metabolism › View

What is the unit of energy used in the text?

A. Liters

B. Kilograms

C. Calories

D. Joules

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Bacteria & Viruses › View

What is the last step in the viral reproduction cycle?
A. A virus attaches to the surface of a host cell
B. The proteins and genetic material start to assemble in the cell
C. The host cell bursts open, releasing the new viruses
D. The virus injects its genetic material into the cell

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