Because you cannot test it or observe it.
A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment.
The food chains make up the food webs
Answer:
Question 13 - c. exons
Question 14 - c. introns
Explanation:
Its me again the person that made the question. I know the answer. I did it and got a 77.7%
I didn't get a good score. But I moved on to Mandatory 2 Step.
The answer I put on all my questions are the answers I used to get a 77.7%
need options so i cant answer