Firstly light is an external stimuli. in plants - shoots are positively phototrophic while roots are negatively phototrophic.
Patterns. ...
Cause and effect: Mechanism and explanation. ...
Scale, proportion, and quantity. ...
Systems and system models. ...
Energy and matter: Flows, cycles, and conservation. ...
Structure and function. ...
Stability and change.
I wanna say the answer is cause and effect
The elements that are best known for helping performers memorize an epic poem are rhyme, rhythm, and repetition of certain words.
Soil, water and food are all nonliving reservoirs of infection
