Guard cells are responsible for allowing carbon dioxide to enter a plant. they also control the release of oxygen and water to the atmosphere. based on this description, where are guard cells located? a. on the surface of leaves b. along the root system c. the interior portion of leaves d. within the stem

on the surface of leaves.

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

so whats the answer