They synthesize their own food; or produce their own food.
Answer:
I am not sure what you are asking but when pH is alkaline it will change the litmus paper to that blue color.
Answer:
towards the cell, because salt, and the cell may die
Explanation:
Water! (abiotic)
If water runs out then everything dies! :)
Thanks for the opportunity to answer your question and I hope this help! :)
It makes photosynthesis<span> more efficient.</span>
