The answer is A. i say this because when they use sunlight as energy, cabon dioxide and water are converted into organic material, they are used as cellular functions ( such as biosynthesis and respiration ). An able autotroph is able to make his own food.
I would say communication, as neurons transmits messages from one part to another part of the body
<span>d. Does sugar or salt have a greater effect on plant growth?
This question has measurable outcomes, that can be repeated and tested. </span>
