Phototropism Stimulus = Response =

A light, plant leaves move towards touch
B sunlight, plant faces sun
C light, plant grows towards light source
D plant stem grows upwards, plants roots grow downward

I wish I could help but I don't think this work is on my grade level

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey