Which could be a reason viruses are considered nonliving things?

a. viruses come from cells.
b. viruses produce cells.
c. viruses are made of dna and proteins, but not cells.
d. viruses attack cells and are dangerous to them.

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Any sound above what db can cause hearing loss in human beings

Construct at least two possible hypotheses for the student’s experiment.