The diagram below shows two different types of life cycles that occur at the microscopic level. Each shows a single occurrence of a life cycle.
Which of the following is true?
A.
Both life cycle X and life cycle Y must represent virus life cycles because only viruses can reproduce
B.
Life cycle Y must represent a virus life cycle because a host cell is required for reproduction.
C.
Neither life cycle X nor life cycle Y can represent a virus life cycle because both result in multiple offspring.
D.
Life cycle X must represent a virus life cycle because it is able to reproduce by splitting in two.