please help me with these to questions!

The trait that viruses share with living things is the ability to
a. adapt.
b. use food.
c. respond.
d. reproduce.

and

Some viruses cause the host cell to reproduce both itself and the virus.
Groups of these cells become
a. polio.
b. tumors.
c. mumps.
d. rabies.

thank you !

2 answers

reproduce

1) Reproduce
2) Tumors