There's tropism and stimulus, for starters. Gravity, light, and touch can all be used as stimuli. So it is debatable... If the plant is reaching upwards towards a window that is above it... It would then be light, and the plant's response would be to reach upward.
Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest?
A nucleotide is made up of a base, a sugar and a phosphate group.
Answer:
D.
Explanation:
The independent variable is the variable that goes unchanged by the others
