SO YEAH...

SUN SHINES....

BECAUSE OF THE SUNSHINE THE PLANT GROWS...

LIZARD COULD RUN, OR STAY IN MATTHEW MORGAN'S HAND

THE SURROUNDING ENVIRONMENT IS IN A NORMAL STABLE STATE.

THE GRASS BE GROWIN

THE PLANT IS GROWING DOWN TOWARDS THE GROUND WITH GRAVITY

THE BOARD IS COVERING THE GROUND SO THE GRASS DOESN'T GET LIGHT

PLANT IS GROWING TOWARDS THE LIGHT.

A STIMULUS THAT COMES FROM INSIDE AN ORGAISM

AN INVOLUNTARY ORIENTING RESPONSE POSITIVE OR NEGATIVE