Starch is present in saliva.
I don't know which food choice you made so I can't explain why you got the results you did.
It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations
So i believe the answer to this is A.
Answer:
I would have to say c I have learned this type of stuff in the past
Answer:
A planet's atmospheric conditions influence its ability to retain heat, so that the location of the habitable zone is also specific to each type of planet.
Explanation:
Scientists often perform experiments to check and recheck their work. They also redo these experiments to ensure correct results.
