3

1

2

4

Acid production and gas production.

No acid production, but gas production.

No acid production and no gas production.

Acid production, but no gas production.

A

C

D

B

It is a major protein in milk.

It is found in collagen and is a gelling agent.

It is a molecule used to store energy.

It is found in cell membranes and id a source of energy.

It is found in the bacterial cell wall.

They started writing their own movies.

 People began to read more about their lives.

They became less famous than before.

 They stopped acting in plays and only did movies.

The government tried to stop plays, but people still loved them.

Plays became popular, but only rich people could go.

Actors were famous, but playwrights were not.

People liked plays more than any other kind of fun.