Answer:
gravity im not sure though
Explanation:
The answer is theory development.
That's it because if you were a scientist, you couldn't collect data if you were forming a theory. I mean, how would you create a theory if you haven't even collected any data?!?!
That's my answer for ya!
The answer for this question is true.
Scales provide protection, they have lungs for breathing air, internal reproduction allows them to reproduce on land.
