Kylie suspects the age of the skeletal remains that she found following an excavation to be older than 30. However, to conclude it positively, kylie should look for: A. degenerative changes
B. bone fragments
C. Bone fusion

, such as:
A. Teeth
B. Skull sutures
C. epiphyseal fusion

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

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