The stomata and their guard cells allows this happen.
Stomata is like a hole or gap on a leaf, most of them are present in a bottom side of the leaf, since waxy cuticle is not present over there. And 2 guard cells make up a stomata.
Guard cells are able to control the size of the stomata, depending on the situation. For example, the guard cells close up during day time because a lot of sunlight may cause more water loss.
In conclusion, guard cells and the stomata are the main structures that allow carbon dioxide and oxygen (water too) diffuse in and out of leaves.
Answer:a
Explanation: just had the question
Answer:
Most nerve fibers from both divisions innervate many of the same effectors.
Most nerve fibers from both divisions share the same sites of origin.
The parasympathetic nervous system is responsible for controlling the homeostasis, resting and digestion functions of the body. The sympathetic nervous system controls the body's response against threat and fight and flight responses. Both parasympathetic and sympathetic nervous systems are responsible for the involuntary functions of the human body.
Most nerve fibers from both divisions share the same sites of origin because both have the nerve fibers that are originated from brain or spinal cord that are directed or passes to the targeted organs.
Most nerve fibers from both divisions innervate many of the same effectors so as to induce functions according to the bodily needs.
