Answer:
The subject of a talk, piece of writing, exhibition,etc,a topic is called theme.
Internal conflicts are disagreements and problems that you have with yourself.
Examples
- Sarah is upset with herself because she spilled the milk on the table.
- Tom is angry at himself because he forgot to do his school assignments.
External conflicts are disagreements and problems that happen with other people or things.
Examples
- Ashley was mad at Diana for using all of her lip gloss
- Devin was mad at his teacher for not putting all of the grades in.
- Hope this helps!<3
Fit, because that is a better understanding sentence:
the lizard is able to fit to live in different environments.
