Answer:
The statement is false.
Explanation:
I actually had this question on a test, and I got it wrong when I put true.
The answer to this would be D: physical components of the environment, such as rocks and sand. The word "biotic" mean all the living organisms within an ecosystem such as plants and animals.
It would be: Rr × Rr
Result of cross would be: 1RR, 2Rr, 1rr
So, it's genotypic ratio = 1:2:1
Phenotypic ratio = 3:1
Hope this helps!
If I'm remembering it right and if I did my research correctly, the answer is True.